This doesn't impact translated strings at all;
mostly code comments/README/& one error message.
But now the next time someone runs "codespell"
he'll find important typos faster.
Generate reference doc for CorsixTH, AnimView, LevelEdit, MapEdit with doxygen.
Allow LDocGen to generate documentation in any working directory.
Upload documentation to web with TravisCI.
Corrections to the original pull request contributed by:
Alberth <alberth289346@gmail.com>