Integrate YUI Compressor (CSS and JavaScript minifyer)

[emjunior258]

https://github.com/yui/yuicompressor/

[emjunior258]

Consider that angular code will be minified. Dependency injection should be mate using $inject annotation. .

var MyController = function($scope, greeter) {
  // ...
}
MyController.$inject = ['$scope', 'greeter'];
someModule.controller('MyController', MyController);