Log Message:
Updated py-tortoisehg to 3.8.1.

TortoiseHg 3.8.1

TortoiseHg 3.8.1 is a feature release. 3.8.0 was skipped since
Mercurial tagged 3.8.1 the same day as 3.8.0.

Bug Fixes

    guifork: disable interaction with tty input (refs #4469)
    qtapp: disable interaction with tty on GUI (fixes #4469)
    postreview: suggest wiki if reviewboard extension not enabled (fixes #4463)
    workbench: fall back to revset query on "go to revision" (fixes #4084)

Improvements

    clone: add a --config extensions.largefiles= option
    paths: always respect the HG environment variable

Installer

    updates to packaged dulwich and hgsubversion