docs(changelog): release notes for 1.2.0
docs(changelog): release notes for 1.2.0

componentizr/angular-route,componentizr/angular-animate,componentizr/angular-loader,componentizr/angular-route,componentizr/angular-animate,npmcomponent/componentizr-angular.js,componentizr/angular-route,npmcomponent/componentizr-angular.js,componentizr/angular-loader,componentizr/angular-animate,npmcomponent/componentizr-angular.js,componentizr/angular-loader