better support for integration of python pygtk mainloop into fontforge mainloop.

I will hush the printfs shortly as they only serve to see that things
are working initiall. ie, I'll remove them once I can see that this
works on osx.
Merge pull request #1179 from monkeyiq/2014feb/ipythonupdates

better support for integration of python pygtk mainloop into fontforge m...