diff --git a/.travis.yml b/.travis.yml
index 904ab62..b78bf2b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,11 +6,7 @@ node_js:
 addons:
   sauce_connect: true
   firefox: latest
-  apt:
-    sources:
-    - google-chrome
-    packages:
-    - google-chrome-stable
+  chrome: stable
 services:
   - xvfb
 before_install:
diff --git a/karma.conf.ci.js b/karma.conf.ci.js
index 37bef20..e8399ce 100644
--- a/karma.conf.ci.js
+++ b/karma.conf.ci.js
@@ -1,4 +1,4 @@
-module.exports = function(config) {
+module.exports = function (config) {
     'use strict';
     if (!process.env.SAUCE_USERNAME || !process.env.SAUCE_ACCESS_KEY) {
         console.log('Make sure the SAUCE_USERNAME and SAUCE_ACCESS_KEY environment variables are set.');
@@ -95,7 +95,9 @@ module.exports = function(config) {
             connectOptions: {
                 port: 5757,
                 logfile: 'sauce_connect.log'
-            }
+            },
+            build: process.env.TRAVIS_BUILD_ID || Math.floor((new Date).getTime() / 1000 - 1230768000).toString(),
+            tags: [process.env.TRAVIS_BRANCH || "local"]
         },
         customLaunchers: customLaunchers,
         browsers: Object.keys(customLaunchers),
diff --git a/package-lock.json b/package-lock.json
index e398e11..b244201 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -276,9 +276,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "7.1.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
-          "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ==",
+          "version": "7.1.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+          "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
           "dev": true
         },
         "xtend": {
@@ -902,6 +902,15 @@
         "xtend": "^4.0.0"
       },
       "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        },
         "safe-buffer": {
           "version": "5.2.0",
           "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
@@ -1799,12 +1808,6 @@
           "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
           "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
           "dev": true
-        },
-        "kind-of": {
-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
-          "dev": true
         }
       }
     },
@@ -2372,6 +2375,15 @@
             "brace-expansion": "^1.1.7"
           }
         },
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        },
         "ms": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -2447,9 +2459,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "7.1.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
-          "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ==",
+          "version": "7.1.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+          "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
           "dev": true
         }
       }
@@ -2611,6 +2623,21 @@
             "ms": "2.0.0"
           }
         },
+        "minimist": {
+          "version": "0.0.8",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+          "dev": true
+        },
+        "mkdirp": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+          "dev": true,
+          "requires": {
+            "minimist": "0.0.8"
+          }
+        },
         "ms": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -3057,9 +3084,9 @@
           "dev": true
         },
         "kind-of": {
-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
           "dev": true
         },
         "micromatch": {
@@ -3834,9 +3861,9 @@
           }
         },
         "minimist": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
           "dev": true
         },
         "semver": {
@@ -4664,6 +4691,12 @@
       "integrity": "sha512-kssjab8CvdXfcXMXVcvsXum4Hwdq9XGtRD3TteMEvEbq0LXyiNQr6AprqKqfeaDXze7SxWvRxdpwE6ku7ikLkg==",
       "dev": true
     },
+    "html-escaper": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
+      "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==",
+      "dev": true
+    },
     "htmlescape": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/htmlescape/-/htmlescape-1.1.1.tgz",
@@ -5304,6 +5337,15 @@
             "path-is-absolute": "^1.0.0"
           }
         },
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        },
         "resolve": {
           "version": "1.1.7",
           "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
@@ -5430,12 +5472,12 @@
       }
     },
     "istanbul-reports": {
-      "version": "2.2.6",
-      "resolved": "https://registry.npmjs.org/istanbul-reports/-/istanbul-reports-2.2.6.tgz",
-      "integrity": "sha512-SKi4rnMyLBKe0Jy2uUdx28h8oG7ph2PPuQPvIAh31d+Ci+lSiEu4C+h3oBPuJ9+mPKhOyW0M8gY4U5NM1WLeXA==",
+      "version": "2.2.7",
+      "resolved": "https://registry.npmjs.org/istanbul-reports/-/istanbul-reports-2.2.7.tgz",
+      "integrity": "sha512-uu1F/L1o5Y6LzPVSVZXNOoD/KXpJue9aeLRd0sM9uMXfZvzomB0WxVamWb5ue8kA2vVWEmW7EG+A5n3f1kqHKg==",
       "dev": true,
       "requires": {
-        "handlebars": "^4.1.2"
+        "html-escaper": "^2.0.0"
       }
     },
     "jasmine": {
@@ -6240,6 +6282,12 @@
         "colors": "^1.1.2"
       }
     },
+    "kind-of": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+      "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
+      "dev": true
+    },
     "klaw": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/klaw/-/klaw-1.3.1.tgz",
@@ -6709,9 +6757,9 @@
       },
       "dependencies": {
         "kind-of": {
-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
           "dev": true
         }
       }
@@ -6847,9 +6895,9 @@
       }
     },
     "minimist": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
       "dev": true
     },
     "minipass": {
@@ -6907,21 +6955,10 @@
       }
     },
     "mkdirp": {
-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
-      "dev": true,
-      "requires": {
-        "minimist": "0.0.8"
-      },
-      "dependencies": {
-        "minimist": {
-          "version": "0.0.8",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
-        }
-      }
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+      "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
+      "dev": true
     },
     "module-deps": {
       "version": "6.2.2",
@@ -7068,17 +7105,17 @@
           "dev": true
         },
         "kind-of": {
-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
           "dev": true
         }
       }
     },
     "natives": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/natives/-/natives-1.1.4.tgz",
-      "integrity": "sha512-Q29yeg9aFKwhLVdkTAejM/HvYG0Y1Am1+HUkFQGn5k2j8GS+v60TVmZh6nujpEAj/qql+wGUrlryO8bF+b1jEg==",
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/natives/-/natives-1.1.6.tgz",
+      "integrity": "sha512-6+TDFewD4yxY14ptjKaS63GVdtKiES1pTPyxn9Jb0rBqPMZ7VcCiooEhPNsr+mqHtMGxa/5c/HhcC4uPEUw/nA==",
       "dev": true
     },
     "natural-compare": {
@@ -7151,6 +7188,15 @@
         "tar": "^4"
       },
       "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        },
         "nopt": {
           "version": "4.0.1",
           "resolved": "https://registry.npmjs.org/nopt/-/nopt-4.0.1.tgz",
@@ -9372,6 +9418,15 @@
         "yallist": "^3.0.3"
       },
       "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        },
         "safe-buffer": {
           "version": "5.2.0",
           "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
@@ -9840,9 +9895,9 @@
       },
       "dependencies": {
         "kind-of": {
-          "version": "6.0.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
+          "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==",
           "dev": true
         }
       }
@@ -10134,19 +10189,13 @@
           "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
           "dev": true
         },
-        "minimist": {
-          "version": "0.0.8",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
-        },
         "mkdirp": {
-          "version": "0.5.1",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-          "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
           "dev": true,
           "requires": {
-            "minimist": "0.0.8"
+            "minimist": "^1.2.5"
           }
         },
         "readable-stream": {
@@ -10490,6 +10539,17 @@
       "dev": true,
       "requires": {
         "mkdirp": "^0.5.1"
+      },
+      "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        }
       }
     },
     "ws": {