(gtk) copyediting: indentation & whitespace

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13731 f4695dd4-2c0a-0410-b89c-da849a56a58e
(gtk) #5207 'Simplify GTK+ client's category filter to match Qt and Web clients' -- done.

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13732 f4695dd4-2c0a-0410-b89c-da849a56a58e
(qt) #5206 'tray icon cancels logout in KDE' -- fixed with patch from basinilya

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13733 f4695dd4-2c0a-0410-b89c-da849a56a58e