Do not use ng-controller, use directives instead

Improve Angular app design

* [x] remove ng-controller
* [x] add gitory:repository:form directive
* [x] add gitory:repository:list directive
* [ ] add gitory:flashmessage directive
* [ ] add gitory:flashmessage service
* [ ] test gitory:repository:form directive
* [ ] test gitory:repository:list directive
* [ ] test gitory:flashmessage directive
* [ ] add gitory:flashmessage service
* [ ] minify views template in public/index.html