Renamed Transifex project from django-core to django

See also http://blog.transifex.com/post/83622601443/new-teams-management-transifex
Fixed #22499 -- Fixed a typo in an admin_views test that caused failure on Oracle.
Ignored repeated calls to connection.close().

Forwardport of 9bbb43dd1a from stable/1.7.x
Prevented a crash in the cursor wrappers on Oracle.

Fixed #22483 (again).

Forwardport of 5cd6429620 from stable/1.7.x
Made sure cursor.close() does not complain if cursor is already closed on Oracle

Refs #22483
Fixed #22498 -- constraint name was not quoted in FK creation SQL