feat: add hide and show functionality on renderables
test: changed the existing tests to work with the hide and show feature change
test: add tests for hide and show
Merge branch 'hideShow' of github.com:rajatkhanna82/famous-angular into rajatkhanna82-hideShow

Conflicts:
	dist/famous-angular.js
	dist/famous-angular.min.js
	src/scripts/directives/fa-flipper.js
	src/scripts/directives/fa-grid-layout.js
	src/scripts/directives/fa-scrollview.js
	src/scripts/services/famousDecorator.js
fix: add check for isFaElement for animate leave
Merge branch 'master' into hideShow

Conflicts:
	dist/famous-angular.min.js
	famous-angular-docs
	famous-angular-examples