Otherwise people wouldn't be able to conveniently use os.path, which is
an undesirable pain point. And do this for all currently exposed APIs,
not just the AbstractImporter that caused a problem.
This reverts commit 28497ec2ca.
Everything needed to make a Python variant of the Text example. The
Oxygen.ttf font file is the same as in MagnumPlugins/FreeTypeFont/Test
in the magnum-plugins repository.
Vladimír Vondruš