Angular 1.2.0 rc.2 (similar to Pull #47)

I've successfully switched to angular-js 1.2.0-rc.2.  All demos run properly and karma tests pass.

The changes:
1) Use angular-js 1.2.0-rc.2.js file.
1) Included angular-touch as a bower dependency.  This is the replacement in 1.2.0 for angular-mobile.
2) When angular-mobile was renamed to angular-touch, they also changed the module from ngMobile to ngTouch.
3) Removed references to the old angular-mobile.js that was being bundled in /lib and copied to /dist.  Now we depend on bower to install angular-touch.js to bower_components.