Removing jshintrc

Grunt cannot merge options when using jshintrc
Added basic authentication

I also added basic support for continuous integration
Adding travis integration

Hopefully this works. I've never tried testing with bower and karma
before on travis.
Modifying the build script

Now installing bower and grunt-cli first
Adding travis to the README

This shows the build status for the repository
Merge pull request #1 from pspeter3/authentication

Authentication