Editor: Show changes in open files - phase 1: first checkin
http://bugs.activestate.com/show_bug.cgi?id=70081
r=marky
More changes to come.  Checking this in as a baseline.

(integrated from komodo (trunk) change 83574 by ericp)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14166 b87d16e7-d29f-4ee1-b5ec-817d645d335f