Bug 6553: Wrong locale directory for alternate translations

Thanks, Kurt.

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps34@22192 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
6553: Local settings and reports and event editor

Query the environment variables LC_TIME and LANG before resorting to
getdefaultlocale() on Win32.

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps34@22193 4ae1f11a-8b86-4847-b8af-ab372f36d1fd