Bug 13276: t/XSLT.t shouldn't depend on the DB

Bug 13276: t/XSLT.t shouldn't depend on the DB

To reproduce:
- Stop your MySQL server:
  $ sudo service mysql stop
- Run
  $ prove t/XSLT.t
=> FAIL: some tests fail because of mysql stopped

To test (MySQL still stopped)
- Apply the patch
- Run
  $ prove t/XSLT.t
=> SUCCESS: tests pass because the ycan be loaded regardless of
            the absence of the DB server
- Sign off :-D

Regards

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Tests pass without db connection for me now.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>