Revert "remove dependence with refinery"

This reverts commit e727b354e209e49173f87ebd9c0d33b3f617eb63.
enable to change the view
remove a dependance with refinery
change currentModels for a collection
show a message on save
hide the editions buttons on save
standardize the javascript
add an helper
change the method to load dependencies
change the helper
change Readme
add a description in the gemspec
add app folder to the required files
correct a typo
change for the new version of jquery-ui
change the version of jquery-ui
change the version of backbone-on-rails
replace content by a block
change for a new version
remove the content variable