Fix broken User link name (it was possible to change link name to one that was already used, validation was not working correctly).
Patch by: Pawel Solyga
Move "(required)" text to third column instead of second column in templatetags, it's much more user friendly that way. Add new version of as_table that support our current error messages format, information about required fields and tooltips.
Patch by: Pawel Solyga