Add jit-grunt task to project
Remove all loadNpmTasks as these are now handled with jit
Add time grunt for pretty task time display
Rebuild the package.json to reflect the grunt package chagnes.

Props to : https://jonsuh.com/blog/take-grunt-to-the-next-level/
Merge pull request #2 from tareiking/grunt

Rework a few grunt tasks based on the awesome work from Jonathan Suh #boss