Npm cleanup

Cleans up npm installs.

Multiple external scripts

Adds ability to have an array of scripts for the vendor option instead of just a string.

Vendor options

Adds ability to specify vendor scripts that need to be used with integration tests.

Code optomization

Fixes bug where the file buffer is not cleared out in a multiple instance run. Better error handling for the PhantomJS runner.

keepRunner option

Adds more functionality to the keepRunner option. Allows for it to accept a string to write the specRunner.html to a specific path.

Dependency release

• Fixes an issue with the package.json file that prevented the necessary dependencies to be included in the npm install process.
• Adds .npmignore file