A big code base clean up and cruft removal

hi all @hisakonog @Kedersha @jrwdunham @Yogurt1206 @DrDub @ghazan 

the fact that the codebase was deep inside a couchapp has been bugging me since december, when i put it there.

 this pull request moves it out into the backbone_client folder. i also cleaned things up and removed some cruft. if you ahve time, it would be good to pull from upstream if you plan on doing any new changes. that way you will have the new folder structure. 

Note: you will have to remove your chrome extension, and re-load unpacked chrome extension (this time, pointing to the backbone_client folder)

I think all the scripts are updated, let me know if they dont work...