Remove docutils pin

This was added to work around bug 1091333.  A new sphinx has been
released and so this is no longer necessary.

Change-Id: I6ea61a3cc441dd1ca2ced7e2fd837a55b917f76d
Bump hacking to version 0.9.2

Change-Id: I59437a7b2fc6696a310adaf308ba6208fa18b3d0
Merge "Remove docutils pin"
Merge "Bump hacking to version 0.9.2"