Adds missing end of line to test/common
Fixes orm-exports test to don't check specifically if err is null
Updates property-timezones test
Fixes sqlite driver to work properly with timezones

This fix (and others later) are based on my work on timezones in the
mysql module.
Fixes postgres driver to work properly with timezones
Removes mongodb from property-timezones for now

MongoDB seems to always store dates in UTC..
Prepares mongodb driver for timezones but no timezone shifting is done just yet