diff --git a/package-lock.json b/package-lock.json
index 1514850..b922f32 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -160,21 +160,21 @@
       "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q=="
     },
     "acorn": {
-      "version": "6.0.2",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.2.tgz",
-      "integrity": "sha512-GXmKIvbrN3TV7aVqAzVFaMW8F8wzVX7voEBRO3bDA64+EX37YSayggRJP5Xig6HYHBkWKpFg9W5gg6orklubhg==",
+      "version": "6.0.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.4.tgz",
+      "integrity": "sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg==",
       "dev": true
     },
     "acorn-jsx": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.0.tgz",
-      "integrity": "sha512-XkB50fn0MURDyww9+UYL3c1yLbOBz0ZFvrdYlGB8l+Ije1oSC75qAqrzSPjYQbdnQUzhlUGNKuesryAv0gxZOg==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.1.tgz",
+      "integrity": "sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==",
       "dev": true
     },
     "ajv": {
-      "version": "6.5.4",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.4.tgz",
-      "integrity": "sha512-4Wyjt8+t6YszqaXnLDfMmG/8AlO5Zbcsy3ATHncCzjW/NoPzAId8AK6749Ybjmdt+kUY1gP60fCu46oDxPv/mg==",
+      "version": "6.6.1",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.6.1.tgz",
+      "integrity": "sha512-ZoJjft5B+EJBjUyu9C9Hc0OZyPZSSlOF+plzouTrg6UlA8f+e/n8NIgBFG/9tppJtpPWfthHakK7juJdNDODww==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^2.0.1",
@@ -320,6 +320,12 @@
       "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz",
       "integrity": "sha1-104bh+ev/A24qttwIfP+SBAasjQ="
     },
+    "astral-regex": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/astral-regex/-/astral-regex-1.0.0.tgz",
+      "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
+      "dev": true
+    },
     "async": {
       "version": "2.6.1",
       "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
@@ -1101,7 +1107,7 @@
     },
     "callsites": {
       "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz",
+      "resolved": "http://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz",
       "integrity": "sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=",
       "dev": true
     },
@@ -1528,52 +1534,6 @@
       "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
       "dev": true
     },
-    "del": {
-      "version": "2.2.2",
-      "resolved": "https://registry.npmjs.org/del/-/del-2.2.2.tgz",
-      "integrity": "sha1-wSyYHQZ4RshLyvhiz/kw2Qf/0ag=",
-      "dev": true,
-      "requires": {
-        "globby": "^5.0.0",
-        "is-path-cwd": "^1.0.0",
-        "is-path-in-cwd": "^1.0.0",
-        "object-assign": "^4.0.1",
-        "pify": "^2.0.0",
-        "pinkie-promise": "^2.0.0",
-        "rimraf": "^2.2.8"
-      },
-      "dependencies": {
-        "globby": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/globby/-/globby-5.0.0.tgz",
-          "integrity": "sha1-69hGZ8oNuzMLmbz8aOrCvFQ3Dg0=",
-          "dev": true,
-          "requires": {
-            "array-union": "^1.0.1",
-            "arrify": "^1.0.0",
-            "glob": "^7.0.3",
-            "object-assign": "^4.0.1",
-            "pify": "^2.0.0",
-            "pinkie-promise": "^2.0.0"
-          }
-        },
-        "pinkie": {
-          "version": "2.0.4",
-          "resolved": "https://registry.npmjs.org/pinkie/-/pinkie-2.0.4.tgz",
-          "integrity": "sha1-clVrgM+g1IqXToDnckjoDtT3+HA=",
-          "dev": true
-        },
-        "pinkie-promise": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/pinkie-promise/-/pinkie-promise-2.0.1.tgz",
-          "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
-          "dev": true,
-          "requires": {
-            "pinkie": "^2.0.0"
-          }
-        }
-      }
-    },
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
@@ -1693,9 +1653,9 @@
       "dev": true
     },
     "eslint": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.8.0.tgz",
-      "integrity": "sha512-Zok6Bru3y2JprqTNm14mgQ15YQu/SMDkWdnmHfFg770DIUlmMFd/gqqzCHekxzjHZJxXv3tmTpH0C1icaYJsRQ==",
+      "version": "5.10.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.10.0.tgz",
+      "integrity": "sha512-HpqzC+BHULKlnPwWae9MaVZ5AXJKpkxCVXQHrFaRw3hbDj26V/9ArYM4Rr/SQ8pi6qUPLXSSXC4RBJlyq2Z2OQ==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -1707,7 +1667,7 @@
         "eslint-scope": "^4.0.0",
         "eslint-utils": "^1.3.1",
         "eslint-visitor-keys": "^1.0.0",
-        "espree": "^4.0.0",
+        "espree": "^5.0.0",
         "esquery": "^1.0.1",
         "esutils": "^2.0.2",
         "file-entry-cache": "^2.0.0",
@@ -1717,7 +1677,6 @@
         "ignore": "^4.0.6",
         "imurmurhash": "^0.1.4",
         "inquirer": "^6.1.0",
-        "is-resolvable": "^1.1.0",
         "js-yaml": "^3.12.0",
         "json-stable-stringify-without-jsonify": "^1.0.1",
         "levn": "^0.3.0",
@@ -1761,9 +1720,9 @@
           }
         },
         "globals": {
-          "version": "11.8.0",
-          "resolved": "https://registry.npmjs.org/globals/-/globals-11.8.0.tgz",
-          "integrity": "sha512-io6LkyPVuzCHBSQV9fmOwxZkUk6nIaGmxheLDgmuFv89j0fm2aqDbIXKAGfzCMHqz3HLF2Zf8WSG6VqMh2qFmA==",
+          "version": "11.9.0",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-11.9.0.tgz",
+          "integrity": "sha512-5cJVtyXWH8PiJPVLZzzoIizXx944O4OmRro5MWKx5fT4MgcN7OfaMutPeaTdJCCURwbWdhhcCWcKIffPnmTzBg==",
           "dev": true
         },
         "js-yaml": {
@@ -1825,9 +1784,9 @@
       }
     },
     "espree": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/espree/-/espree-4.1.0.tgz",
-      "integrity": "sha512-I5BycZW6FCVIub93TeVY1s7vjhP9CY6cXCznIRfiig7nRviKZYdRnj/sHEWC6A7WE9RDWOFq9+7OsWSYz8qv2w==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-5.0.0.tgz",
+      "integrity": "sha512-1MpUfwsdS9MMoN7ZXqAr9e9UKdVHDcvrJpyx7mm1WuQlx/ygErEQBzgi5Nh5qBHIoYweprhtMkTCb9GhcAIcsA==",
       "dev": true,
       "requires": {
         "acorn": "^6.0.2",
@@ -2041,14 +2000,14 @@
       }
     },
     "flat-cache": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/flat-cache/-/flat-cache-1.3.0.tgz",
-      "integrity": "sha1-0wMLMrOBVPTjt+nHCfSQ9++XxIE=",
+      "version": "1.3.4",
+      "resolved": "https://registry.npmjs.org/flat-cache/-/flat-cache-1.3.4.tgz",
+      "integrity": "sha512-VwyB3Lkgacfik2vhqR4uv2rvebqmDvFu4jlN/C1RzWoJEo8I7z4Q404oiqYCkq41mni8EzQnm95emU9seckwtg==",
       "dev": true,
       "requires": {
         "circular-json": "^0.3.1",
-        "del": "^2.0.2",
         "graceful-fs": "^4.1.2",
+        "rimraf": "~2.6.2",
         "write": "^0.2.1"
       }
     },
@@ -3049,9 +3008,9 @@
       "integrity": "sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw=="
     },
     "inquirer": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-6.2.0.tgz",
-      "integrity": "sha512-QIEQG4YyQ2UYZGDC4srMZ7BjHOmNk1lR2JQj5UknBapklm6WHA+VVH7N+sUdX3A7NeCfGF8o4X1S3Ao7nAcIeg==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-6.2.1.tgz",
+      "integrity": "sha512-088kl3DRT2dLU5riVMKKr1DlImd6X7smDhpXUCkJDCKvTEJeRiXh0G132HG9u5a+6Ylw9plFRY7RuTnwohYSpg==",
       "dev": true,
       "requires": {
         "ansi-escapes": "^3.0.0",
@@ -3065,8 +3024,25 @@
         "run-async": "^2.2.0",
         "rxjs": "^6.1.0",
         "string-width": "^2.1.0",
-        "strip-ansi": "^4.0.0",
+        "strip-ansi": "^5.0.0",
         "through": "^2.3.6"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.0.0.tgz",
+          "integrity": "sha512-iB5Dda8t/UqpPI/IjsejXu5jOGDrzn41wJyljwPH65VCIbk6+1BzFIMJGFwTNrYXT1CrD+B4l19U7awiQ8rk7w==",
+          "dev": true
+        },
+        "strip-ansi": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.0.0.tgz",
+          "integrity": "sha512-Uu7gQyZI7J7gn5qLn1Np3G9vcYGTVqB+lFTytnDJv83dd8T22aGH451P3jueT2/QemInJDfxHB5Tde5OzgG1Ow==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.0.0"
+          }
+        }
       }
     },
     "invariant": {
@@ -3225,21 +3201,6 @@
         "symbol-observable": "^1.1.0"
       }
     },
-    "is-path-cwd": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/is-path-cwd/-/is-path-cwd-1.0.0.tgz",
-      "integrity": "sha1-0iXsIxMuie3Tj9p2dHLmLmXxEG0=",
-      "dev": true
-    },
-    "is-path-in-cwd": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/is-path-in-cwd/-/is-path-in-cwd-1.0.1.tgz",
-      "integrity": "sha512-FjV1RTW48E7CWM7eE/J2NJvAEEVektecDBVBE5Hh3nM1Jd0kvhHtX68Pr3xsDf857xt3Y4AkwVULK1Vku62aaQ==",
-      "dev": true,
-      "requires": {
-        "is-path-inside": "^1.0.0"
-      }
-    },
     "is-path-inside": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/is-path-inside/-/is-path-inside-1.0.1.tgz",
@@ -3279,12 +3240,6 @@
       "integrity": "sha1-HQPd7VO9jbDzDCbk+V02/HyH3CQ=",
       "dev": true
     },
-    "is-resolvable": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/is-resolvable/-/is-resolvable-1.1.0.tgz",
-      "integrity": "sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==",
-      "dev": true
-    },
     "is-retry-allowed": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz",
@@ -4438,9 +4393,9 @@
       "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw=="
     },
     "progress": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.1.tgz",
-      "integrity": "sha512-OE+a6vzqazc+K6LxJrX5UPyKFvGnL5CYmq2jFGNIBWHpc4QyE49/YOumcrpQFJpfejmvRtbJzgO1zPmMCqlbBg==",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
+      "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==",
       "dev": true
     },
     "pseudomap": {
@@ -4708,7 +4663,7 @@
     },
     "require-uncached": {
       "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",
+      "resolved": "http://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",
       "integrity": "sha1-Tg1W1slmL9MeQwEcS5WqSZVUIdM=",
       "dev": true,
       "requires": {
@@ -5109,15 +5064,34 @@
       "dev": true
     },
     "table": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/table/-/table-5.1.0.tgz",
-      "integrity": "sha512-e542in22ZLhD/fOIuXs/8yDZ9W61ltF8daM88rkRNtgTIct+vI2fTnAyu/Db2TCfEcI8i7mjZz6meLq0nW7TYg==",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/table/-/table-5.1.1.tgz",
+      "integrity": "sha512-NUjapYb/qd4PeFW03HnAuOJ7OMcBkJlqeClWxeNlQ0lXGSb52oZXGzkO0/I0ARegQ2eUT1g2VDJH0eUxDRcHmw==",
       "dev": true,
       "requires": {
-        "ajv": "^6.5.3",
-        "lodash": "^4.17.10",
-        "slice-ansi": "1.0.0",
+        "ajv": "^6.6.1",
+        "lodash": "^4.17.11",
+        "slice-ansi": "2.0.0",
         "string-width": "^2.1.1"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.11",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
+          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+          "dev": true
+        },
+        "slice-ansi": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-2.0.0.tgz",
+          "integrity": "sha512-4j2WTWjp3GsZ+AOagyzVbzp4vWGtZ0hEZ/gDY/uTvm6MTxUfTUIsnMIFb1bn8o0RuXiqUw15H1bue8f22Vw2oQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.0",
+            "astral-regex": "^1.0.0",
+            "is-fullwidth-code-point": "^2.0.0"
+          }
+        }
       }
     },
     "taffydb": {
diff --git a/package.json b/package.json
index 9ee80ed..fdec701 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   },
   "devDependencies": {
     "ava": "0.25.0",
-    "eslint": "5.8.0",
+    "eslint": "5.10.0",
     "jsdoc": "3.5.5",
     "minami-compat": "1.2.4"
   },
diff --git a/yarn.lock b/yarn.lock
index 649a284..ede84c5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -71,15 +71,13 @@ abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
-acorn-jsx@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-4.1.1.tgz#e8e41e48ea2fe0c896740610ab6a4ffd8add225e"
-  dependencies:
-    acorn "^5.0.3"
+acorn-jsx@^5.0.0:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.0.1.tgz#32a064fd925429216a09b141102bfdd185fae40e"
 
-acorn@^5.0.3, acorn@^5.6.0:
-  version "5.7.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
+acorn@^6.0.2:
+  version "6.0.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.0.4.tgz#77377e7353b72ec5104550aa2d2097a2fd40b754"
 
 ajv@^4.9.1:
   version "4.11.8"
@@ -1234,9 +1232,9 @@ eslint-visitor-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
 
-eslint@5.8.0:
-  version "5.8.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.8.0.tgz#91fbf24f6e0471e8fdf681a4d9dd1b2c9f28309b"
+eslint@5.10.0:
+  version "5.10.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.10.0.tgz#24adcbe92bf5eb1fc2d2f2b1eebe0c5e0713903a"
   dependencies:
     "@babel/code-frame" "^7.0.0"
     ajv "^6.5.3"
@@ -1247,7 +1245,7 @@ eslint@5.8.0:
     eslint-scope "^4.0.0"
     eslint-utils "^1.3.1"
     eslint-visitor-keys "^1.0.0"
-    espree "^4.0.0"
+    espree "^5.0.0"
     esquery "^1.0.1"
     esutils "^2.0.2"
     file-entry-cache "^2.0.0"
@@ -1257,7 +1255,6 @@ eslint@5.8.0:
     ignore "^4.0.6"
     imurmurhash "^0.1.4"
     inquirer "^6.1.0"
-    is-resolvable "^1.1.0"
     js-yaml "^3.12.0"
     json-stable-stringify-without-jsonify "^1.0.1"
     levn "^0.3.0"
@@ -1286,12 +1283,13 @@ espower-location-detector@^1.0.0:
     source-map "^0.5.0"
     xtend "^4.0.0"
 
-espree@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/espree/-/espree-4.0.0.tgz#253998f20a0f82db5d866385799d912a83a36634"
+espree@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-5.0.0.tgz#fc7f984b62b36a0f543b13fb9cd7b9f4a7f5b65c"
   dependencies:
-    acorn "^5.6.0"
-    acorn-jsx "^4.1.1"
+    acorn "^6.0.2"
+    acorn-jsx "^5.0.0"
+    eslint-visitor-keys "^1.0.0"
 
 esprima@^4.0.0:
   version "4.0.0"
@@ -1990,10 +1988,6 @@ is-redirect@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-redirect/-/is-redirect-1.0.0.tgz#1d03dded53bd8db0f30c26e4f95d36fc7c87dc24"
 
-is-resolvable@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
-
 is-retry-allowed@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"