Fixes for building RPM
Fix "make check" target
No more submodule to refresh on this branch.
Removing unreachable code that generates compilation warning.
Merge pull request #139 from aerostitch/gnome-3.12-remove_git_submodule_call

No more submodule to refresh on this branch.
Merge pull request #140 from aerostitch/gnome-3.12-remove_unreachable_code

Removing unreachable code that generates compilation warning.
Fix some of compilation warnings
Update ca.po

Updated translation: added missing strings and improved translation of existing ones.