bugfix in __init__ form: If field is read_only isn't in self.fields
add fake admin to ADMINS setting for send email for 500's error
add utility method for set content of tinyMCE
support autocomplete with django-autocomplete-ligth
add admin_order_field for custom method admin_category
add default permission at HELPDESK_REQUESTER
add get_clean_content to Ticket models for refactoring