Update testability bindings to 2.0.0

Adds better transition and animation handling.

Author: rasjani

package.json

@@ -9,7 +9,7 @@
     "babel-loader": "^8.0.5",
     "babel-plugin-syntax-dynamic-import": "^6.18.0",
     "exports-loader": "^0.7.0",
-    "testability-browser-bindings": "github:alfonso-presa/testability-browser-bindings#035ab87",
+    "testability-browser-bindings": "^2.0.0",
     "testability.js": "^0.3.1",
     "webpack": "^4.42.0",
     "webpack-cli": "^3.3.11"