renaming site.sass to app.sass
adding global mixins section and breakpoint mixin
removing all bower dependencies but bootstrap and jquery 1.10.2.

Dependencies should be added on a per-project basis. jQuery 1.10.2 is specified just to provide IE8 support.
Adding Grunt watch task for javascript folder and updating copy and concat commands to support bootstrap 3.
changing file references.
Adding javascript folder to modularize javascript files they are concatenated via grunt with the a watch or concat tasks.
Removing site.sass. It was renamed to app.sass
Adding SASS breakpoint mixin.