Added authentication module webapi, to provide registration via webapi.
Improved the roles display by providing table of permissions if asked.
Added various links in primary tabs to navigate back to roles or users, depending on the page.
Added datetime to-from string converters in CMS_ENCODERS.
Start removing CMS_ADMINISTRABLE.
Added permission to use simple core access token.
Added webapi for users: list, new, register.
- List node by node types
- fixed the trash/restore/delete workflow
Added messaging module to send message to cms users (by email for now).
Added early protection for cache, export and import functionalities.
Added CMS_USER.profile_name .
Improved module managements with install vs enable.
- enabled/disabled status can also be stored in database.
Install procedure do not install all available modules anymore.
