Add single permissions in account model
Set users from group admin module
Remove useless htaccess file
Small corrections on the debug settings.

Logging DEBUG info to console was a bad idea.
Plus, the prefix was wrong.
Create a basic Organistation model
Basic admin module for organisations
Add missing unicode function in organisation model
Create the document category model
Add categories relations to organisation model
Add default organisation in fixtures
Edit categories in organisation admin module
Init admin module for categories