Fix debian/control file for Daily Build PPA
Fix debian/control file for Daily Build PPA

Utopic doesn't carry valac-0.22, so  marking valac virtual package
as dependency for the required version in the Makefile.

jimbonator/shotwell,abrauchli/shotwell,abrauchli/shotwell,jimbonator/shotwell,abrauchli/shotwell,jimbonator/shotwell