Apply JSCS and JSHint to the protractor test files / Update deps

* I updated the settings of the `lint` task and `.jshintrc` to apply JSCS and JSHint to the protoractor test files.
* I fixed coding styles according to the report of JSCS and JSHint.
* I replaced [async](https://github.com/caolan/async) with [async-each-series](https://github.com/jb55/async-each-series).
* I updated dependencies and devDependencies.