Including testing controllers, models and views

This we can play with models and controllers for configuring the Admin
Creating config initializer
Migration and schema for menu_kind
We build all different menu kinds
Edit form for blocks. Right now we just can edit the name of each menu item
Loading menu item decorator
First, naif version of a object select form
Merge branch 'features/nocms-configuration'
Adopting new styles from nocms-admin for nested blocks
Missing div.row included
versions of nocms-menus and nocms-admin
Merge branch 'features/nested-menu-items-forms'