diff --git a/demo/package-lock.json b/demo/package-lock.json
index b4c0470..391725f 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -11,27 +11,12 @@
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@@ -1004,14 +889,6 @@
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@@ -1025,53 +902,24 @@
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@@ -1079,74 +927,25 @@
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@@ -1154,65 +953,28 @@
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+            "once": "^1.3.0",
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@@ -1221,49 +983,41 @@
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           "optional": true
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-            "hoek": "2.16.3",
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-          "bundled": true,
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           }
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@@ -1273,167 +1027,134 @@
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+            "yallist": "^3.0.0"
+          }
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-        "json-stable-stringify": {
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           "optional": true,
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+            "npm-normalize-package-bin": "^1.0.1"
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-            "tar": "2.2.1",
-            "tar-pack": "3.4.0"
-          }
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-        "nopt": {
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+        "npm-packlist": {
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           "bundled": true,
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           "requires": {
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+            "ignore-walk": "^3.0.1",
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           }
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-          "version": "4.1.0",
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-            "console-control-strings": "1.1.0",
-            "gauge": "2.7.4",
-            "set-blocking": "2.0.0"
+            "are-we-there-yet": "~1.1.2",
+            "console-control-strings": "~1.1.0",
+            "gauge": "~2.7.3",
+            "set-blocking": "~2.0.0"
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@@ -1441,12 +1162,6 @@
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@@ -1458,7 +1173,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "wrappy": "1.0.2"
+            "wrappy": "1"
           }
         },
         "os-homedir": {
@@ -1474,53 +1189,37 @@
           "optional": true
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-          "version": "0.1.4",
+          "version": "0.1.5",
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           "dev": true,
           "optional": true,
           "requires": {
-            "os-homedir": "1.0.2",
-            "os-tmpdir": "1.0.2"
+            "os-homedir": "^1.0.0",
+            "os-tmpdir": "^1.0.0"
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-        "qs": {
-          "version": "6.4.0",
+          "version": "2.0.1",
           "bundled": true,
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           "optional": true
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-          "version": "1.2.1",
+          "version": "1.2.8",
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-            "ini": "1.3.4",
-            "minimist": "1.2.0",
-            "strip-json-comments": "2.0.1"
+            "deep-extend": "^0.6.0",
+            "ini": "~1.3.0",
+            "minimist": "^1.2.0",
+            "strip-json-comments": "~2.0.1"
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@@ -1532,143 +1231,89 @@
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       "dev": true,
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-        "kind-of": "3.2.2"
+        "kind-of": "^3.2.0"
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@@ -2921,7 +2476,7 @@
           "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
           "dev": true,
           "requires": {
-            "is-buffer": "1.1.6"
+            "is-buffer": "^1.1.5"
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@@ -2933,16 +2488,16 @@
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-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.1.tgz",
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+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.3.tgz",
+      "integrity": "sha512-Htz+RnsXWk5+P2slx5Jh3Q66vhQj1Cllm0zvnaY98+NFx+Dv2CF/f5O/t8x+KaNdrdIAsruNzoh/KpialbqAnw==",
       "dev": true,
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-        "atob": "2.1.0",
-        "decode-uri-component": "0.2.0",
-        "resolve-url": "0.2.1",
-        "source-map-url": "0.4.0",
-        "urix": "0.1.0"
+        "atob": "^2.1.2",
+        "decode-uri-component": "^0.2.0",
+        "resolve-url": "^0.2.1",
+        "source-map-url": "^0.4.0",
+        "urix": "^0.1.0"
       }
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@@ -2951,22 +2506,13 @@
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-      "version": "0.3.3",
-      "resolved": "https://registry.npmjs.org/split/-/split-0.3.3.tgz",
-      "integrity": "sha1-zQ7qXmOiEd//frDwkcQTPi0N0o8=",
-      "dev": true,
-      "requires": {
-        "through": "2.3.8"
-      }
-    },
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       "resolved": "https://registry.npmjs.org/split-string/-/split-string-3.1.0.tgz",
       "integrity": "sha512-NzNVhJDYpwceVVii8/Hu6DKfD2G+NrQHlS/V/qgv763EYudVwEcMQNxd2lh+0VrUByXN/oJkl5grOhYWvQUYiw==",
       "dev": true,
       "requires": {
-        "extend-shallow": "3.0.2"
+        "extend-shallow": "^3.0.0"
       }
     },
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@@ -2975,8 +2521,8 @@
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       "dev": true,
       "requires": {
-        "define-property": "0.2.5",
-        "object-copy": "0.1.0"
+        "define-property": "^0.2.5",
+        "object-copy": "^0.1.0"
       },
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@@ -2985,23 +2531,24 @@
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
           "dev": true,
           "requires": {
-            "is-descriptor": "0.1.6"
+            "is-descriptor": "^0.1.0"
           }
         }
       }
     },
     "statuses": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
-      "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
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-    "stream-combiner": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/stream-combiner/-/stream-combiner-0.0.4.tgz",
-      "integrity": "sha1-TV5DPBhSYd3mI8o/RMWGvPXErRQ=",
+    "string-width": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+      "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
       "dev": true,
       "requires": {
-        "duplexer": "0.1.1"
+        "is-fullwidth-code-point": "^2.0.0",
+        "strip-ansi": "^4.0.0"
       }
     },
     "string_decoder": {
@@ -3010,17 +2557,7 @@
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       "dev": true,
       "requires": {
-        "safe-buffer": "5.1.1"
-      }
-    },
-    "string-width": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-      "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
-      "dev": true,
-      "requires": {
-        "is-fullwidth-code-point": "2.0.0",
-        "strip-ansi": "4.0.0"
+        "safe-buffer": "~5.1.0"
       }
     },
     "strip-ansi": {
@@ -3029,7 +2566,7 @@
       "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
       "dev": true,
       "requires": {
-        "ansi-regex": "3.0.0"
+        "ansi-regex": "^3.0.0"
       }
     },
     "strip-eof": {
@@ -3045,12 +2582,12 @@
       "dev": true
     },
     "supports-color": {
-      "version": "5.3.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.3.0.tgz",
-      "integrity": "sha512-0aP01LLIskjKs3lq52EC0aGBAJhLq7B2Rd8HC/DR/PtNNpcLilNmHC12O+hu0usQpo7wtHNRqtrhBwtDb0+dNg==",
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+      "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
       "dev": true,
       "requires": {
-        "has-flag": "3.0.0"
+        "has-flag": "^3.0.0"
       }
     },
     "term-size": {
@@ -3059,15 +2596,9 @@
       "integrity": "sha1-RYuDiH8oj8Vtb/+/rSYuJmOO+mk=",
       "dev": true,
       "requires": {
-        "execa": "0.7.0"
+        "execa": "^0.7.0"
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-    "through": {
-      "version": "2.3.8",
-      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
-      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
-      "dev": true
-    },
     "timed-out": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/timed-out/-/timed-out-4.0.1.tgz",
@@ -3080,7 +2611,7 @@
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       "dev": true,
       "requires": {
-        "kind-of": "3.2.2"
+        "kind-of": "^3.0.2"
       },
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@@ -3089,7 +2620,7 @@
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           "dev": true,
           "requires": {
-            "is-buffer": "1.1.6"
+            "is-buffer": "^1.1.5"
           }
         }
       }
@@ -3100,10 +2631,10 @@
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       "dev": true,
       "requires": {
-        "define-property": "2.0.2",
-        "extend-shallow": "3.0.2",
-        "regex-not": "1.0.2",
-        "safe-regex": "1.1.0"
+        "define-property": "^2.0.2",
+        "extend-shallow": "^3.0.2",
+        "regex-not": "^1.0.2",
+        "safe-regex": "^1.1.0"
       }
     },
     "to-regex-range": {
@@ -3112,26 +2643,31 @@
       "integrity": "sha1-fIDBe53+vlmeJzZ+DU3VWQFB2zg=",
       "dev": true,
       "requires": {
-        "is-number": "3.0.0",
-        "repeat-string": "1.6.1"
+        "is-number": "^3.0.0",
+        "repeat-string": "^1.6.1"
       }
     },
+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+    },
     "touch": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/touch/-/touch-3.1.0.tgz",
       "integrity": "sha512-WBx8Uy5TLtOSRtIq+M03/sKDrXCLHxwDcquSP2c43Le03/9serjQBIztjRz6FkJez9D/hleyAXTBGLwwZUw9lA==",
       "dev": true,
       "requires": {
-        "nopt": "1.0.10"
+        "nopt": "~1.0.10"
       }
     },
     "type-is": {
-      "version": "1.6.15",
-      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.15.tgz",
-      "integrity": "sha1-yrEPtJCeRByChC6v4a1kbIGARBA=",
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "2.1.17"
+        "mime-types": "~2.1.24"
       }
     },
     "undefsafe": {
@@ -3140,42 +2676,19 @@
       "integrity": "sha1-Il9rngM3Zj4Njnz9aG/Cg2zKznY=",
       "dev": true,
       "requires": {
-        "debug": "2.6.9"
+        "debug": "^2.2.0"
       }
     },
     "union-value": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
-      "integrity": "sha1-XHHDTLW61dzr4+oM0IIHulqhrqQ=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
+      "integrity": "sha512-tJfXmxMeWYnczCVs7XAEvIV7ieppALdyepWMkHkwciRpZraG/xwT+s2JN8+pr1+8jCRf80FFzvr+MpQeeoF4Xg==",
       "dev": true,
       "requires": {
-        "arr-union": "3.1.0",
-        "get-value": "2.0.6",
-        "is-extendable": "0.1.1",
-        "set-value": "0.4.3"
-      },
-      "dependencies": {
-        "extend-shallow": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
-          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
-          "dev": true,
-          "requires": {
-            "is-extendable": "0.1.1"
-          }
-        },
-        "set-value": {
-          "version": "0.4.3",
-          "resolved": "https://registry.npmjs.org/set-value/-/set-value-0.4.3.tgz",
-          "integrity": "sha1-fbCPnT0i3H945Trzw79GZuzfzPE=",
-          "dev": true,
-          "requires": {
-            "extend-shallow": "2.0.1",
-            "is-extendable": "0.1.1",
-            "is-plain-object": "2.0.4",
-            "to-object-path": "0.3.0"
-          }
-        }
+        "arr-union": "^3.1.0",
+        "get-value": "^2.0.6",
+        "is-extendable": "^0.1.1",
+        "set-value": "^2.0.1"
       }
     },
     "unique-string": {
@@ -3184,7 +2697,7 @@
       "integrity": "sha1-nhBXzKhRq7kzmPizOuGHuZyuwRo=",
       "dev": true,
       "requires": {
-        "crypto-random-string": "1.0.0"
+        "crypto-random-string": "^1.0.0"
       }
     },
     "unpipe": {
@@ -3198,8 +2711,8 @@
       "integrity": "sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=",
       "dev": true,
       "requires": {
-        "has-value": "0.3.1",
-        "isobject": "3.0.1"
+        "has-value": "^0.3.1",
+        "isobject": "^3.0.0"
       },
       "dependencies": {
         "has-value": {
@@ -3208,9 +2721,9 @@
           "integrity": "sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=",
           "dev": true,
           "requires": {
-            "get-value": "2.0.6",
-            "has-values": "0.1.4",
-            "isobject": "2.1.0"
+            "get-value": "^2.0.3",
+            "has-values": "^0.1.4",
+            "isobject": "^2.0.0"
           },
           "dependencies": {
             "isobject": {
@@ -3239,27 +2752,27 @@
       "dev": true
     },
     "upath": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/upath/-/upath-1.0.4.tgz",
-      "integrity": "sha512-d4SJySNBXDaQp+DPrziv3xGS6w3d2Xt69FijJr86zMPBy23JEloMCEOUBBzuN7xCtjLCnmB9tI/z7SBCahHBOw==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/upath/-/upath-1.2.0.tgz",
+      "integrity": "sha512-aZwGpamFO61g3OlfT7OQCHqhGnW43ieH9WZeP7QxN/G/jS4jfqUkZxoryvJgVPEcrl5NL/ggHsSmLMHuH64Lhg==",
       "dev": true
     },
     "update-notifier": {
-      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/update-notifier/-/update-notifier-2.4.0.tgz",
-      "integrity": "sha1-+bTHAPv9TsEsgRWHJYd31WPYyGY=",
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/update-notifier/-/update-notifier-2.5.0.tgz",
+      "integrity": "sha512-gwMdhgJHGuj/+wHJJs9e6PcCszpxR1b236igrOkUofGhqJuG+amlIKwApH1IW1WWl7ovZxsX49lMBWLxSdm5Dw==",
       "dev": true,
       "requires": {
-        "boxen": "1.3.0",
-        "chalk": "2.3.2",
-        "configstore": "3.1.2",
-        "import-lazy": "2.1.0",
-        "is-ci": "1.1.0",
-        "is-installed-globally": "0.1.0",
-        "is-npm": "1.0.0",
-        "latest-version": "3.1.0",
-        "semver-diff": "2.1.0",
-        "xdg-basedir": "3.0.0"
+        "boxen": "^1.2.1",
+        "chalk": "^2.0.1",
+        "configstore": "^3.0.0",
+        "import-lazy": "^2.1.0",
+        "is-ci": "^1.0.10",
+        "is-installed-globally": "^0.1.0",
+        "is-npm": "^1.0.0",
+        "latest-version": "^3.0.0",
+        "semver-diff": "^2.0.0",
+        "xdg-basedir": "^3.0.0"
       }
     },
     "urix": {
@@ -3274,17 +2787,14 @@
       "integrity": "sha1-evjzA2Rem9eaJy56FKxovAYJ2nM=",
       "dev": true,
       "requires": {
-        "prepend-http": "1.0.4"
+        "prepend-http": "^1.0.1"
       }
     },
     "use": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/use/-/use-3.1.0.tgz",
-      "integrity": "sha512-6UJEQM/L+mzC3ZJNM56Q4DFGLX/evKGRg15UJHGB9X5j5Z3AFbgZvjUh2yq/UJUY4U5dh7Fal++XbNg1uzpRAw==",
-      "dev": true,
-      "requires": {
-        "kind-of": "6.0.2"
-      }
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
+      "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==",
+      "dev": true
     },
     "util-deprecate": {
       "version": "1.0.2",
@@ -3303,32 +2813,32 @@
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
     "which": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
-      "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
     "widest-line": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-2.0.0.tgz",
-      "integrity": "sha1-AUKk6KJD+IgsAjOqDgKBqnYVInM=",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-2.0.1.tgz",
+      "integrity": "sha512-Ba5m9/Fa4Xt9eb2ELXt77JxVDV8w7qQrH0zS/TWSJdLyAwQjWoOzpzj5lwVftDz6n/EOu3tNACS84v509qwnJA==",
       "dev": true,
       "requires": {
-        "string-width": "2.1.1"
+        "string-width": "^2.1.1"
       }
     },
     "write-file-atomic": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.3.0.tgz",
-      "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.4.3.tgz",
+      "integrity": "sha512-GaETH5wwsX+GcnzhPgKcKjJ6M2Cq3/iZp1WyY/X1CSqrW+jVNM9Y7D8EC2sM4ZG/V8wZlSniJnCKWPmBYAucRQ==",
       "dev": true,
       "requires": {
-        "graceful-fs": "4.1.11",
-        "imurmurhash": "0.1.4",
-        "signal-exit": "3.0.2"
+        "graceful-fs": "^4.1.11",
+        "imurmurhash": "^0.1.4",
+        "signal-exit": "^3.0.2"
       }
     },
     "xdg-basedir": {
diff --git a/demo/package.json b/demo/package.json
index 70eced3..5929e80 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -10,10 +10,10 @@
   "author": "Glenn de Haan",
   "license": "MIT",
   "dependencies": {
-    "body-parser": "^1.17.2",
-    "express": "^4.16.3"
+    "body-parser": "^1.19.0",
+    "express": "^4.17.1"
   },
   "devDependencies": {
-    "nodemon": "^1.17.3"
+    "nodemon": "^1.19.4"
   }
 }
diff --git a/demo/server.js b/demo/server.js
index a5e75f4..68503c1 100644
--- a/demo/server.js
+++ b/demo/server.js
@@ -39,11 +39,11 @@ app.use(browsersupport({
     // redirectUrl: "/oldbrowser",
     customResponse: oldBrowserResponse,
     supportedBrowsers: [
-        "Chrome >= 52",
-        "Firefox >= 47",
+        "Chrome >= 41",
+        "Firefox >= 13",
         "Safari >= 10",
-        "Edge == All",
-        "IE == 11"
+        "IE == 11",
+        "Edge == All"
     ]
 }));
 
diff --git a/package-lock.json b/package-lock.json
index 9dd758a..dcb9a64 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,46 +13,101 @@
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-      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.4.4.tgz",
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+      "version": "7.8.3",
+      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.8.3.tgz",
+      "integrity": "sha512-3x3yOeyBhW851hroze7ElzdkeRXQYQbFIb7gLK1WQYsw2GWDay5gAJNw1sWJ0VFP6z5J1whqeXH/WCdCjZv6dA==",
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+      }
+    },
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+      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.8.3.tgz",
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       "dev": true,
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+        "@babel/template": "^7.8.3",
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@@ -67,67 +122,160 @@
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+          "dev": true
+        }
+      }
+    },
+    "@istanbuljs/schema": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/@istanbuljs/schema/-/schema-0.1.2.tgz",
+      "integrity": "sha512-tsAQNx32a8CoFhjhijUIhI4kccIAgmGhy8LZMZgGfmXcpMbPRUqn5LWmgRttILi6yeGmBJd2xsPkFMs0PzgPCw==",
+      "dev": true
+    },
+    "@types/color-name": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
+      "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==",
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@@ -156,17 +304,27 @@
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
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+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.1.0.tgz",
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+      "resolved": "https://registry.npmjs.org/aggregate-error/-/aggregate-error-3.0.1.tgz",
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+      "dev": true,
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@@ -186,10 +344,13 @@
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-      "dev": true
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-4.3.0.tgz",
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+      "dev": true,
+      "requires": {
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@@ -206,13 +367,23 @@
         "color-convert": "^1.9.0"
       }
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+      "dev": true,
+      "requires": {
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+            "ansi-regex": "^4.1.0"
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@@ -3315,14 +3652,15 @@
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         "imurmurhash": "^0.1.4",
-        "signal-exit": "^3.0.2"
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+        "signal-exit": "^3.0.2",
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@@ -3331,29 +3669,22 @@
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-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
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-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.2.2.tgz",
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+      "version": "13.3.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
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       "dev": true,
       "requires": {
-        "cliui": "^4.0.0",
+        "cliui": "^5.0.0",
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-        "os-locale": "^3.1.0",
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-        "yargs-parser": "^13.0.0"
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@@ -3385,9 +3716,9 @@
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+      "version": "13.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
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@@ -3395,58 +3726,14 @@
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+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.6.0.tgz",
+      "integrity": "sha512-W9tKgmSn0DpSatfri0nx52Joq5hVXgeLiqR/5G0sZNDoLZFOr/xjBUDcShCOGNsBnEMNo1KAMBkTej1Hm62HTw==",
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-        "lodash": "^4.17.11",
-        "yargs": "^12.0.5"
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-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
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-          "dev": true,
-          "requires": {
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-            "decamelize": "^1.2.0"
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+        "lodash": "^4.17.15",
+        "yargs": "^13.3.0"
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diff --git a/package.json b/package.json
index a17f0a0..571262c 100644
--- a/package.json
+++ b/package.json
@@ -52,11 +52,11 @@
     "express-useragent": "^1.0.12"
   },
   "devDependencies": {
-    "coveralls": "^3.0.2",
-    "eslint": "^6.0.1",
+    "coveralls": "^3.0.9",
+    "eslint": "^6.8.0",
     "express": "^4.16.3",
-    "mocha": "^6.0.0",
-    "nyc": "^14.1.1",
+    "mocha": "^7.0.0",
+    "nyc": "^15.0.0",
     "request": "^2.87.0",
     "should": "^13.1.1"
   }