6867: warn on gtk translation missing

Give a dev-oriented warning on console and pop up a UI
warning dialog for the user, when an inconsistent
translation configuration is detected between gramps and gtk
(happens when a langpack is missing on Ubuntu systems, e.g.)

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22683 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
6923: runtest.sh broken in gramps40/trunk

Fixed the file locations to work for the gramps40/trunk layout.

Also porting my fix from gramps34 branch for
6837: runtest.sh runs some reports that no longer exist

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22684 4ae1f11a-8b86-4847-b8af-ab372f36d1fd