Python 3.4.0 deprecated the "imp" module, and replaced it with
"importlib". This changes imp.reload() into implib.reload().
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D1016
Now everything should be done with ui_translate addon (which is also now fully functional again, in theory ;) ).
Notes:
* Everything is still a bit raw and sometimes hackish.
* Not every feature implemented yet.
* A bunch of cleanup is still needed.
* Doc needs to be updated too!