chore(deps): update firebase to 4.3

Author: adriancarriger

package.json

@@ -64,7 +64,7 @@
     "commitizen": "2.9.2",
     "core-js": "2.4.1",
     "cz-conventional-changelog": "1.2.0",
-    "firebase": "^3.9.0",
+    "firebase": "^4.3.1",
     "istanbul-instrumenter-loader": "0.2.0",
     "jasmine-core": "2.5.2",
     "karma": "1.3.0",

yarn.lock

@@ -1424,9 +1424,9 @@ findup-sync@~0.3.0:
   dependencies:
     glob "~5.0.0"
 
-firebase@^3.9.0:
-  version "3.9.0"
-  resolved "https://registry.yarnpkg.com/firebase/-/firebase-3.9.0.tgz#c4237f50f58eeb25081b1839d6cbf175f8f7ed9b"
+firebase@^4.3.1:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/firebase/-/firebase-4.3.1.tgz#0e6132ee22af323b350d03b6eb1680bb1a6f9ee6"
   dependencies:
     dom-storage "^2.0.2"
     faye-websocket "0.9.3"