Track changes: Show the "Click on the changebar for details" only when appropriate.
http://bugs.activestate.com/show_bug.cgi?id=102448
r=marky
Make sure the "Click on the changebar for details" shows up only when the cursor is over a marker in the changebar margin.

(integrated from komodo (trunk) change 84113 by ericp)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14263 b87d16e7-d29f-4ee1-b5ec-817d645d335f