Cure strangely braindead forward declarations.
Super basic stat command.
Missing map_async= documentation.
Add cmd_warm().
Merge branch 'master' of github.com:dw/py-lmdb
Add warm cmd to docs.
Python 3.3 compat fixes.
Missing license text.
Merge branch 'master' of github.com:dw/py-lmdb
Fix Python3.x Unicode error reported by Oliver Archner.
Merge branch 'master' of github.com:dw/py-lmdb
Experimental __memsource__ support.
Set PY_SSIZE_T_CLEAN
Missing call to MemSink_IMPORT;.
Typo
More efficient buffer configration.

This is at least true for Linux glibc on my RAID10 drive.
Merge branch 'master' of github.com:dw/py-lmdb
Correct writemap= documentation.
Convert *Note* to .. note::.
Don't import cffi at all when running pydoc.

This improves the _reading_docs() heuristic to also check for "pypy
-mpydoc", and uses _reading_docs() to completely disable cffi import in
that case.

Closes ticket #37.