Adding backbone-mocha to generate tests

Passing ui options to backbone-mocha

Using storage api for persistant settings

Avoid running backbone-mocha when rjs is selected

Using backbone-mocha dummy generator for tests

Adding generator-backbone-mocha as peerDependency
Updating grunt-time
ignoring coverage directory
Merge pull request #177 from revathskumar/backbone-mocha

Backbone mocha test generation : closes #161