Updated the signatures and included some of the recent changes of Backbone.js v1.0.0
Updated file header and included tests.
Added the test for the previous changes.
Updated file header and included tests.
Added sinon-chai definition file.
Renamed files.
Included Test for Chai and renamed files to follow the project convention.
Included chai-jquery definition
Model isValid should return boolean instead of string
Merge pull request #489 from kazimanzurrashid/master

Updated Backbone and Js-Fixtures