Merge pull request #39 from dyoachim/refactoring

Refactoring
changed color on the index page and took out edit and delete buttons
added buttons edit and delete in the language box div for written tracks that only belong to the user's tracks
refactoring js to own files
tracks are deletable
editing in is the works... need to get the updated master merged for some code
refactoring
Merge pull request #40 from dyoachim/edit_and_delete

Edit and delete
merge fixes