BindOne and Bower support

Adding bindOne for binding a single object in a collection with a given id (thanks to @hyperborea).
Adding bower support for including angular.
Removing angular sub modules:
angular-route, angular-touch, angular-animate, angular-cookies, angular-resource, angular-sanitize.
If you wish to include then, just add them with bower:
https://github.com/mquandalle/meteor-bower