update template and french translation, new message = tips for regex usage

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps34@22002 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
updated german translation

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps34@22003 4ae1f11a-8b86-4847-b8af-ab372f36d1fd