Fixed #273 -- BACKWARDS-INCOMPATIBLE CHANGE -- Changed auth.User.password...

Fixed #273 -- BACKWARDS-INCOMPATIBLE CHANGE -- Changed auth.User.password field to add support for other password encryption algorithms. Renamed password_md5 to password and changed field length from 32 to 128. See http://code.djangoproject.com/wiki/BackwardsIncompatibleChanges for upgrade information

git-svn-id: http://code.djangoproject.com/svn/django/trunk@1327 bcc190cf-cafb-0310-a4f2-bffc1f526a37