Stop using the obsolete and unmaintained static gtk bindings.

[Robert Bruce Park]

Rapid photo downloader continues to use the static bindings to Gtk and GObject, despite the fact that these are largely obsolete and abandoned. All maintenance efforts have shifted to the new GObject Introspection modules, which are *vastly* simpler and easier to maintain, allowing us to achieve a higher level of quality with less overall effort.

RPD will need to port to these new technologies in order to remain relevant on a modern linux desktop. Instructions can be found here:

https://live.gnome.org/PyGObject/IntrospectionPorting#Porting_from_PyGTK_2_to_PyGI_GTK_3

[Robert Bruce Park (robru)]

Your migration path is going to look like this:

1. Port from static PyGTK2 to introspected Gtk3 first (as per the URL above). Stick with Python 2 for this step.

2. Merge in my GExiv2 branch (linked to this bug), getting rid of pyexiv2.

3. Wait for PIL to release a version that is compatible with Python 3.

4. Port from Python 2 to Python 3.

[Damon Lynch (dlynch3)]

Barring any unforeseen problems, I'm currently porting Rapid Photo Downloader to a combination of Python 3.4, Qt5 for the UI and 0mq for inter process messaging. Thank you Robert for your work on metadata.py. I'll be using that work because I can now make the switch to gexiv2 too.