Editor: When closing an untitled buffer, and failing to save the buffer, don't close the buffer.
http://bugs.activestate.com/show_bug.cgi?id=100455
r=marky
sr=toddw
rn=

(integrated from komodo (trunk) change 82233 by ericp)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@13710 b87d16e7-d29f-4ee1-b5ec-817d645d335f