v201029

New features in the v201029 release:

• Support for Python 3 contributed by Chris J Billington
  chrisjbillington@gmail.com. Thanks to Max Fuqua
  madmaxreach@gmail.com, Toni Sissala toni.sissala@tuni.fi for
  reporting bugs and in some cases contributing fixes.

• Support for repositories with git and hg subrepos. Patch contributed
  by Ondrej Stanek ostan89@gmail.com.

Plugins:

• The Mercurial revision and commit hash is now available in the
  commit_data dict. Patches contributed by Ethan Furman
  ethan@stoneleaf.us and Ondrej Stanek ostan89@gmail.com.

• The head2branch plugin now works on hashes and not revision
  numbers. Patch contributed by Ondrej Stanek ostan89@gmail.com.

• Plugins can now modify the committer.

• A new plugin, drop, which allows commits to be removed on the
  fly. Contributed by Henrik Tunedal henrik.tunedal@leftisright.se.

Bug fixes:

• More robust Mercurial version detection contributed by Steven Peters
  scpeters@openrobotics.org.

• Documentation fix by Pi Delport pjdelport@gmail.com.

• Mapping files now correctly handles UTF-8. Patch contributed by
  Chris J Billington chrisjbillington@gmail.com.