Drop PyHAML; about to pull new version
Squashed 'lib/PyHAML/' content from commit 3008473

git-subtree-dir: lib/PyHAML
git-subtree-split: 3008473d7bb8d6a4504dd6845e4f61c1c10bd26f
Merge commit 'f97ee928c0bf6ce569f9bcffc9f7b6a7e64fef66' as 'lib/PyHAML'