Add patches

- Remove useless files (AppController, PagesController, webroot/js, webroot/css/bootstrap, webroot/css/style)
- Add some files with setup.sh of FriendsOfCake/travis (.editorconfig, .semver, CONTRIBUTING.md, License.txt)
- Modify the .travis.yml to execute code coverage with coveralls.io and phpcs on BsFormHelper and BsHelper