Separate actions handling from properties in DocumentLink (like in DocumentResult) + add the default delete action in onDefaultUpdateRestResult + add removeRelAction method in DocumentResult.
In admin panel, activate the delete action on document only if the action is present in the REST data.
Disable the delete action for documents that should not be deleted from the admin panel.
Code formatting + clean up
Fix aside display in content section of page and mail editors.
Fix bugs in mail editor and setup.
Add 'Rbs_' prefix to code of mails from module Rbs_User.
Fix unit tests.
Merge pull request #1008 from intportg/dev

Updates on mails.