Avoid bogus rel-calc translation error message in C locale

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@23014 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
Simplify display_url to just use htmlview or webbrowser

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@23015 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
Change grampslocale logger to use __name__ instead of 'grampslocale'

Attempt to suppress 'No handler for logger grampslocale' messages by enrolling the logger in the module hierarchy.

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@23016 4ae1f11a-8b86-4847-b8af-ab372f36d1fd