Changed development setup and dependencies. fixes #19

Moved from src/grunt.js to Gruntfile.js
Changed from min to uglify task
Put development dependencies to package.json and ignored node_modules for git
removed trailing whitespace from headtrackr.js
Merge pull request #20 from DanielMSchmidt/dev

Changed development setup and dependencies. fixes #19
Fixed minor encoding issue

Fixed encoding issue in license