Webapp: use cuni for python3 compatibility

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22989 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
Webapp: search refinements

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22993 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
Webapp: update empty.sql to latest db design

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22995 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
updated german translation

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22997 4ae1f11a-8b86-4847-b8af-ab372f36d1fd