Log Message:
Updated py-tortoisehg to 3.9.2.

TortoiseHg 3.9.2 is a regularly scheduled bug-fix release.

There were no changes to TortoiseHg itself in this release, but
the installer packages include Mercurial 3.9.2 and many updates to
the packaged software libraries. The Windows installers now come
with the latest Python release (2.7.10), the latest Qt4 and PyQt4
releases, and updates to several Mercurial extensions including
keyring, evolve, and dulwich (hg-git).