Moved code from Controllers to Interactors (Duplicate methods)
Removed duplication from Menus and Pages edit form
Blocks and Areas are now hidden after creation
Separated Pages edit view into multiple views
Moved all Javascript routes in master view file
Fixed a bug on Pages edit interface in block/area forms. Added error message in Menus interface
Fixed a bug in migration file. Areas have now the correct height when dragged. Added a verification in Index view
Merge branch 'develop' - v0.4.6