[svn] Moving db_session declaration into try/except to avoid import issues when an entire app isn't setup in advance.
[svn] Moving db_session declaration into try/except to avoid import issues when an entire app isn't setup in advance.

--HG--
branch : trunk

Pylons/pylons,moreati/pylons,Pylons/pylons,moreati/pylons,moreati/pylons,Pylons/pylons