Updated qua.name to release 0.8 of writefreely
Relevant user visible changes for Qua:
- [NEW] User invites; users can now send invites to others. For Qua specifically this does not add another registration road, because we have already have an open registration, but the invite system has been enabled anyways.
Most of the other changes in the 0.8 release are not very relevant for our users.