pywatchman: bump version, add python version info
pywatchman: bump version, add python version info

Summary:
Closes #396.
Closes https://github.com/facebook/watchman/pull/410

Reviewed By: wez

Differential Revision: D4382081

Pulled By: sid0

fbshipit-source-id: f2b4c3b61cffc7461025af3f9dc9818a126ad792

facebook/watchman,facebook/watchman,nodakai/watchman,nodakai/watchman,nodakai/watchman,wez/watchman,wez/watchman,kwlzn/watchman,wez/watchman,kwlzn/watchman,wez/watchman,kwlzn/watchman,wez/watchman,nodakai/watchman,nodakai/watchman,facebook/watchman,kwlzn/watchman,kwlzn/watchman,facebook/watchman,wez/watchman,kwlzn/watchman,nodakai/watchman,facebook/watchman,wez/watchman,nodakai/watchman,nodakai/watchman,wez/watchman,facebook/watchman,kwlzn/watchman,facebook/watchman,nodakai/watchman,facebook/watchman,facebook/watchman,wez/watchman