fix: Mac: Editor: Focus the editor when mouse clicking on the line number margin
http://bugs.activestate.com/show_bug.cgi?id=101290
rn=

(integrated from komodo (trunk) change 82889 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@13921 b87d16e7-d29f-4ee1-b5ec-817d645d335f