diff --git a/package-lock.json b/package-lock.json
index b55f87c2..73cc632c 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -9036,7 +9015,7 @@
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+        "lolex": "2.6.0",
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@@ -11922,14 +11821,6 @@
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@@ -11945,9 +11836,9 @@
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@@ -11957,9 +11848,9 @@
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@@ -12896,7 +12782,7 @@
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diff --git a/samples/package-lock.json b/samples/package-lock.json
index 38d3f46c..d85fe2a4 100644
--- a/samples/package-lock.json
+++ b/samples/package-lock.json
@@ -1701,6 +1701,10 @@
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@@ -1761,7 +1765,7 @@
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@@ -2032,7 +2036,7 @@
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@@ -2212,7 +2216,7 @@
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@@ -2397,7 +2401,7 @@
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@@ -2625,10 +2629,6 @@
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@@ -2645,13 +2645,6 @@
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@@ -2827,7 +2820,7 @@
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-            "espurify": "1.7.0",
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@@ -2905,7 +2898,7 @@
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             "async-each": "1.0.1",
-            "fsevents": "1.2.3",
+            "fsevents": "1.2.4",
             "glob-parent": "2.0.0",
             "inherits": "2.0.3",
             "is-binary-path": "1.0.1",
@@ -3060,11 +3053,11 @@
           "bundled": true
         },
         "codecov": {
-          "version": "3.0.1",
+          "version": "3.0.2",
           "bundled": true,
           "requires": {
             "argv": "0.0.2",
-            "request": "2.85.0",
+            "request": "2.87.0",
             "urlgrey": "0.4.4"
           }
         },
@@ -3103,7 +3096,7 @@
           }
         },
         "commander": {
-          "version": "2.11.0",
+          "version": "2.15.1",
           "bundled": true
         },
         "common-path-prefix": {
@@ -3164,7 +3157,7 @@
           "requires": {
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             "graceful-fs": "4.1.11",
-            "make-dir": "1.2.0",
+            "make-dir": "1.3.0",
             "unique-string": "1.0.0",
             "write-file-atomic": "2.3.0",
             "xdg-basedir": "3.0.0"
@@ -3213,27 +3206,11 @@
           "version": "5.1.0",
           "bundled": true,
           "requires": {
-            "lru-cache": "4.1.2",
+            "lru-cache": "4.1.3",
             "shebang-command": "1.2.0",
             "which": "1.3.0"
           }
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-        "cryptiles": {
-          "version": "3.1.2",
-          "bundled": true,
-          "requires": {
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-          },
-          "dependencies": {
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-              "version": "5.2.0",
-              "bundled": true,
-              "requires": {
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-              }
-            }
-          }
-        },
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           "bundled": true
@@ -3396,7 +3373,7 @@
           "bundled": true
         },
         "diff-match-patch": {
-          "version": "1.0.0",
+          "version": "1.0.1",
           "bundled": true
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         "dir-glob": {
@@ -3433,7 +3410,7 @@
           "bundled": true
         },
         "domhandler": {
-          "version": "2.4.1",
+          "version": "2.4.2",
           "bundled": true,
           "requires": {
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@@ -3481,10 +3458,9 @@
           }
         },
         "ecdsa-sig-formatter": {
-          "version": "1.0.9",
+          "version": "1.0.10",
           "bundled": true,
           "requires": {
-            "base64url": "2.0.0",
             "safe-buffer": "5.1.2"
           }
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@@ -3767,7 +3743,7 @@
           "bundled": true
         },
         "espower": {
-          "version": "2.1.0",
+          "version": "2.1.1",
           "bundled": true,
           "requires": {
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@@ -3775,7 +3751,7 @@
             "escodegen": "1.9.1",
             "escope": "3.6.0",
             "espower-location-detector": "1.0.0",
-            "espurify": "1.7.0",
+            "espurify": "1.8.0",
             "estraverse": "4.2.0",
             "source-map": "0.5.7",
             "type-name": "2.0.2",
@@ -3821,7 +3797,7 @@
             "convert-source-map": "1.5.1",
             "empower-assert": "1.1.0",
             "escodegen": "1.9.1",
-            "espower": "2.1.0",
+            "espower": "2.1.1",
             "estraverse": "4.2.0",
             "merge-estraverse-visitors": "1.0.0",
             "multi-stage-sourcemap": "0.2.1",
@@ -3854,7 +3830,7 @@
           "bundled": true
         },
         "espurify": {
-          "version": "1.7.0",
+          "version": "1.8.0",
           "bundled": true,
           "requires": {
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@@ -3936,16 +3912,16 @@
           "version": "1.8.2",
           "bundled": true,
           "requires": {
-            "fill-range": "2.2.3"
+            "fill-range": "2.2.4"
           },
           "dependencies": {
             "fill-range": {
-              "version": "2.2.3",
+              "version": "2.2.4",
               "bundled": true,
               "requires": {
                 "is-number": "2.1.0",
                 "isobject": "2.1.0",
-                "randomatic": "1.1.7",
+                "randomatic": "3.0.0",
                 "repeat-element": "1.1.2",
                 "repeat-string": "1.6.1"
               }
@@ -3999,7 +3975,7 @@
           "bundled": true,
           "requires": {
             "chardet": "0.4.2",
-            "iconv-lite": "0.4.22",
+            "iconv-lite": "0.4.23",
             "tmp": "0.0.33"
           }
         },
@@ -4069,10 +4045,11 @@
           "bundled": true
         },
         "fast-glob": {
-          "version": "2.2.1",
+          "version": "2.2.2",
           "bundled": true,
           "requires": {
             "@mrmlnc/readdir-enhanced": "2.2.1",
+            "@nodelib/fs.stat": "1.0.2",
             "glob-parent": "3.1.0",
             "is-glob": "4.0.0",
             "merge2": "1.2.2",
@@ -4138,7 +4115,7 @@
           "bundled": true,
           "requires": {
             "commondir": "1.0.1",
-            "make-dir": "1.2.0",
+            "make-dir": "1.3.0",
             "pkg-dir": "2.0.0"
           }
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@@ -4164,7 +4141,7 @@
           "bundled": true
         },
         "follow-redirects": {
-          "version": "1.4.1",
+          "version": "1.5.0",
           "bundled": true,
           "requires": {
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@@ -4361,7 +4338,7 @@
           "requires": {
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             "dir-glob": "2.0.0",
-            "fast-glob": "2.2.1",
+            "fast-glob": "2.2.2",
             "glob": "7.1.2",
             "ignore": "3.3.8",
             "pify": "3.0.0",
@@ -4369,15 +4346,15 @@
           }
         },
         "google-auth-library": {
-          "version": "1.4.0",
+          "version": "1.5.0",
           "bundled": true,
           "requires": {
             "axios": "0.18.0",
             "gcp-metadata": "0.6.3",
             "gtoken": "2.3.0",
-            "jws": "3.1.4",
+            "jws": "3.1.5",
             "lodash.isstring": "4.0.1",
-            "lru-cache": "4.1.2",
+            "lru-cache": "4.1.3",
             "retry-axios": "0.3.2"
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         },
@@ -4385,10 +4362,10 @@
           "version": "0.10.1",
           "bundled": true,
           "requires": {
-            "async": "2.6.0",
+            "async": "2.6.1",
             "gcp-metadata": "0.6.3",
-            "google-auth-library": "1.4.0",
-            "request": "2.85.0"
+            "google-auth-library": "1.5.0",
+            "request": "2.87.0"
           }
         },
         "google-gax": {
@@ -4479,7 +4456,7 @@
           "bundled": true
         },
         "growl": {
-          "version": "1.10.3",
+          "version": "1.10.5",
           "bundled": true
         },
         "grpc": {
@@ -4489,7 +4466,7 @@
             "lodash": "4.17.10",
             "nan": "2.10.0",
             "node-pre-gyp": "0.10.0",
-            "protobufjs": "5.0.2"
+            "protobufjs": "5.0.3"
           },
           "dependencies": {
             "abbrev": {
@@ -4780,7 +4757,7 @@
               "bundled": true
             },
             "protobufjs": {
-              "version": "5.0.2",
+              "version": "5.0.3",
               "bundled": true,
               "requires": {
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@@ -4912,7 +4889,7 @@
           "requires": {
             "axios": "0.18.0",
             "google-p12-pem": "1.0.2",
-            "jws": "3.1.4",
+            "jws": "3.1.5",
             "mime": "2.3.1",
             "pify": "3.0.0"
           }
@@ -5008,24 +4985,10 @@
           "version": "1.0.0",
           "bundled": true
         },
-        "hawk": {
-          "version": "6.0.2",
-          "bundled": true,
-          "requires": {
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-            "cryptiles": "3.1.2",
-            "hoek": "4.2.1",
-            "sntp": "2.1.0"
-          }
-        },
         "he": {
           "version": "1.1.1",
           "bundled": true
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-        "hoek": {
-          "version": "4.2.1",
-          "bundled": true
-        },
         "home-or-tmp": {
           "version": "2.0.0",
           "bundled": true,
@@ -5043,7 +5006,7 @@
           "bundled": true,
           "requires": {
             "domelementtype": "1.3.0",
-            "domhandler": "2.4.1",
+            "domhandler": "2.4.2",
             "domutils": "1.7.0",
             "entities": "1.1.1",
             "inherits": "2.0.3",
@@ -5084,7 +5047,7 @@
           }
         },
         "iconv-lite": {
-          "version": "0.4.22",
+          "version": "0.4.23",
           "bundled": true,
           "requires": {
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@@ -5612,21 +5575,19 @@
           "bundled": true
         },
         "jwa": {
-          "version": "1.1.5",
+          "version": "1.1.6",
           "bundled": true,
           "requires": {
-            "base64url": "2.0.0",
             "buffer-equal-constant-time": "1.0.1",
-            "ecdsa-sig-formatter": "1.0.9",
+            "ecdsa-sig-formatter": "1.0.10",
             "safe-buffer": "5.1.2"
           }
         },
         "jws": {
-          "version": "3.1.4",
+          "version": "3.1.5",
           "bundled": true,
           "requires": {
-            "base64url": "2.0.0",
-            "jwa": "1.1.5",
+            "jwa": "1.1.6",
             "safe-buffer": "5.1.2"
           }
         },
@@ -5763,7 +5724,7 @@
           "bundled": true
         },
         "lolex": {
-          "version": "2.3.2",
+          "version": "2.6.0",
           "bundled": true
         },
         "long": {
@@ -5794,7 +5755,7 @@
           "bundled": true
         },
         "lru-cache": {
-          "version": "4.1.2",
+          "version": "4.1.3",
           "bundled": true,
           "requires": {
             "pseudomap": "1.0.2",
@@ -5802,7 +5763,7 @@
           }
         },
         "make-dir": {
-          "version": "1.2.0",
+          "version": "1.3.0",
           "bundled": true,
           "requires": {
             "pify": "3.0.0"
@@ -5834,6 +5795,10 @@
             "escape-string-regexp": "1.0.5"
           }
         },
+        "math-random": {
+          "version": "1.0.1",
+          "bundled": true
+        },
         "md5-hex": {
           "version": "2.0.0",
           "bundled": true,
@@ -6045,20 +6010,20 @@
           }
         },
         "mocha": {
-          "version": "5.1.1",
+          "version": "5.2.0",
           "bundled": true,
           "requires": {
             "browser-stdout": "1.3.1",
-            "commander": "2.11.0",
+            "commander": "2.15.1",
             "debug": "3.1.0",
             "diff": "3.5.0",
             "escape-string-regexp": "1.0.5",
             "glob": "7.1.2",
-            "growl": "1.10.3",
+            "growl": "1.10.5",
             "he": "1.1.1",
             "minimatch": "3.0.4",
             "mkdirp": "0.5.1",
-            "supports-color": "4.4.0"
+            "supports-color": "5.4.0"
           },
           "dependencies": {
             "debug": {
@@ -6067,13 +6032,6 @@
               "requires": {
                 "ms": "2.0.0"
               }
-            },
-            "supports-color": {
-              "version": "4.4.0",
-              "bundled": true,
-              "requires": {
-                "has-flag": "2.0.0"
-              }
             }
           }
         },
@@ -6155,7 +6113,7 @@
           "requires": {
             "@sinonjs/formatio": "2.0.0",
             "just-extend": "1.1.27",
-            "lolex": "2.3.2",
+            "lolex": "2.6.0",
             "path-to-regexp": "1.7.0",
             "text-encoding": "0.6.4"
           }
@@ -6208,7 +6166,7 @@
           "bundled": true
         },
         "nyc": {
-          "version": "11.7.1",
+          "version": "11.8.0",
           "bundled": true,
           "requires": {
             "archy": "1.0.0",
@@ -6229,7 +6187,7 @@
             "istanbul-reports": "1.4.0",
             "md5-hex": "1.3.0",
             "merge-source-map": "1.1.0",
-            "micromatch": "2.3.11",
+            "micromatch": "3.1.10",
             "mkdirp": "0.5.1",
             "resolve-from": "2.0.0",
             "rimraf": "2.6.2",
@@ -6273,11 +6231,8 @@
               "bundled": true
             },
             "arr-diff": {
-              "version": "2.0.0",
-              "bundled": true,
-              "requires": {
-                "arr-flatten": "1.1.0"
-              }
+              "version": "4.0.0",
+              "bundled": true
             },
             "arr-flatten": {
               "version": "1.1.0",
@@ -6288,7 +6243,7 @@
               "bundled": true
             },
             "array-unique": {
-              "version": "0.2.1",
+              "version": "0.3.2",
               "bundled": true
             },
             "arrify": {
@@ -6304,7 +6259,7 @@
               "bundled": true
             },
             "atob": {
-              "version": "2.1.0",
+              "version": "2.1.1",
               "bundled": true
             },
             "babel-code-frame": {
@@ -6325,7 +6280,7 @@
                 "babel-types": "6.26.0",
                 "detect-indent": "4.0.0",
                 "jsesc": "1.3.0",
-                "lodash": "4.17.5",
+                "lodash": "4.17.10",
                 "source-map": "0.5.7",
                 "trim-right": "1.0.1"
               }
@@ -6341,7 +6296,7 @@
               "version": "6.26.0",
               "bundled": true,
               "requires": {
-                "core-js": "2.5.5",
+                "core-js": "2.5.6",
                 "regenerator-runtime": "0.11.1"
               }
             },
@@ -6353,7 +6308,7 @@
                 "babel-traverse": "6.26.0",
                 "babel-types": "6.26.0",
                 "babylon": "6.18.0",
-                "lodash": "4.17.5"
+                "lodash": "4.17.10"
               }
             },
             "babel-traverse": {
@@ -6368,7 +6323,7 @@
                 "debug": "2.6.9",
                 "globals": "9.18.0",
                 "invariant": "2.2.4",
-                "lodash": "4.17.5"
+                "lodash": "4.17.10"
               }
             },
             "babel-types": {
@@ -6377,7 +6332,7 @@
               "requires": {
                 "babel-runtime": "6.26.0",
                 "esutils": "2.0.2",
-                "lodash": "4.17.5",
+                "lodash": "4.17.10",
                 "to-fast-properties": "1.0.3"
               }
             },
@@ -6451,12 +6406,28 @@
               }
             },
             "braces": {
-              "version": "1.8.5",
+              "version": "2.3.2",
               "bundled": true,
               "requires": {
-                "expand-range": "1.8.2",
-                "preserve": "0.2.0",
-                "repeat-element": "1.1.2"
+                "arr-flatten": "1.1.0",
+                "array-unique": "0.3.2",
+                "extend-shallow": "2.0.1",
+                "fill-range": "4.0.0",
+                "isobject": "3.0.1",
+                "repeat-element": "1.1.2",
+                "snapdragon": "0.8.2",
+                "snapdragon-node": "2.1.1",
+                "split-string": "3.1.0",
+                "to-regex": "3.0.2"
+              },
+              "dependencies": {
+                "extend-shallow": {
+                  "version": "2.0.1",
+                  "bundled": true,
+                  "requires": {
+                    "is-extendable": "0.1.1"
+                  }
+                }
               }
             },
             "builtin-modules": {
@@ -6591,14 +6562,14 @@
               "bundled": true
             },
             "core-js": {
-              "version": "2.5.5",
+              "version": "2.5.6",
               "bundled": true
             },
             "cross-spawn": {
               "version": "4.0.2",
               "bundled": true,
               "requires": {
-                "lru-cache": "4.1.2",
+                "lru-cache": "4.1.3",
                 "which": "1.3.0"
               }
             },
@@ -6708,7 +6679,7 @@
                   "version": "5.1.0",
                   "bundled": true,
                   "requires": {
-                    "lru-cache": "4.1.2",
+                    "lru-cache": "4.1.3",
                     "shebang-command": "1.2.0",
                     "which": "1.3.0"
                   }
@@ -6716,17 +6687,32 @@
               }
             },
             "expand-brackets": {
-              "version": "0.1.5",
-              "bundled": true,
-              "requires": {
-                "is-posix-bracket": "0.1.1"
-              }
-            },
-            "expand-range": {
-              "version": "1.8.2",
+              "version": "2.1.4",
               "bundled": true,
               "requires": {
-                "fill-range": "2.2.3"
+                "debug": "2.6.9",
+                "define-property": "0.2.5",
+                "extend-shallow": "2.0.1",
+                "posix-character-classes": "0.1.1",
+                "regex-not": "1.0.2",
+                "snapdragon": "0.8.2",
+                "to-regex": "3.0.2"
+              },
+              "dependencies": {
+                "define-property": {
+                  "version": "0.2.5",
+                  "bundled": true,
+                  "requires": {
+                    "is-descriptor": "0.1.6"
+                  }
+                },
+                "extend-shallow": {
+                  "version": "2.0.1",
+                  "bundled": true,
+                  "requires": {
+                    "is-extendable": "0.1.1"
+                  }
+                }
               }
             },
             "extend-shallow": {
@@ -6747,25 +6733,79 @@
               }
             },
             "extglob": {
-              "version": "0.3.2",
+              "version": "2.0.4",
               "bundled": true,
               "requires": {
-                "is-extglob": "1.0.0"
+                "array-unique": "0.3.2",
+                "define-property": "1.0.0",
+                "expand-brackets": "2.1.4",
+                "extend-shallow": "2.0.1",
+                "fragment-cache": "0.2.1",
+                "regex-not": "1.0.2",
+                "snapdragon": "0.8.2",
+                "to-regex": "3.0.2"
+              },
+              "dependencies": {
+                "define-property": {
+                  "version": "1.0.0",
+                  "bundled": true,
+                  "requires": {
+                    "is-descriptor": "1.0.2"
+                  }
+                },
+                "extend-shallow": {
+                  "version": "2.0.1",
+                  "bundled": true,
+                  "requires": {
+                    "is-extendable": "0.1.1"
+                  }
+                },
+                "is-accessor-descriptor": {
+                  "version": "1.0.0",
+                  "bundled": true,
+                  "requires": {
+                    "kind-of": "6.0.2"
+                  }
+                },
+                "is-data-descriptor": {
+                  "version": "1.0.0",
+                  "bundled": true,
+                  "requires": {
+                    "kind-of": "6.0.2"
+                  }
+                },
+                "is-descriptor": {
+                  "version": "1.0.2",
+                  "bundled": true,
+                  "requires": {
+                    "is-accessor-descriptor": "1.0.0",
+                    "is-data-descriptor": "1.0.0",
+                    "kind-of": "6.0.2"
+                  }
+                },
+                "kind-of": {
+                  "version": "6.0.2",
+                  "bundled": true
+                }
               }
             },
-            "filename-regex": {
-              "version": "2.0.1",
-              "bundled": true
-            },
             "fill-range": {
-              "version": "2.2.3",
+              "version": "4.0.0",
               "bundled": true,
               "requires": {
-                "is-number": "2.1.0",
-                "isobject": "2.1.0",
-                "randomatic": "1.1.7",
-                "repeat-element": "1.1.2",
-                "repeat-string": "1.6.1"
+                "extend-shallow": "2.0.1",
+                "is-number": "3.0.0",
+                "repeat-string": "1.6.1",
+                "to-regex-range": "2.1.1"
+              },
+              "dependencies": {
+                "extend-shallow": {
+                  "version": "2.0.1",
+                  "bundled": true,
+                  "requires": {
+                    "is-extendable": "0.1.1"
+                  }
+                }
               }
             },
             "find-cache-dir": {
@@ -6788,13 +6828,6 @@
               "version": "1.0.2",
               "bundled": true
             },
-            "for-own": {
-              "version": "0.1.5",
-              "bundled": true,
-              "requires": {
-                "for-in": "1.0.2"
-              }
-            },
             "foreground-child": {
               "version": "1.5.6",
               "bundled": true,
@@ -6838,21 +6871,6 @@
                 "path-is-absolute": "1.0.1"
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