BUG: 14906: Fix schedule to build association when handling submissions synchronously

SVN revision: 3472
ENH: Added better error handling

SVN revision: 3473
BUG: Fixing issue with subprojects always showing up even when all are removed

SVN revision: 3474
ENH: Support PostgreSQL in filter data functions

Tested-by: Nils Gladitz <nilsgladitz@gmail.com>
BUG: Fix incorrect queries in filters.

This commit fixes the following error:

   Unknown column 'u.updateid' in 'where clause'
ENH: Improve index page layout a bit