Log Message:
Upate py-gobject3 to 3.22.0

3.22.0  19-Sep-2016
- configure.ac: pre-release version bump to 3.22.0 (Christoph Reiter)

3.21.92 11-Sep-2016
- Handle nullable filename parameters (Christoph Reiter) (#770821)
- Fix list/hashtable enum <-> hash conversion on 64-bit big endian
  (Aurelien Jarno) (#770608)
- Allow passing sockets to io_add_watch on win32 (Lukas K) (#766396)
- tests: use dbus-run-session instead of dbus-launch to run tests
  (Michael Biebl) (#770798)
- configure.ac: post-release version bump to 3.21.92 (Christoph Reiter)

3.21.91 25-Aug-2016
- Allow installing with pip (Mathieu Bridon) (#767988)
- Skip a test with older glib (Christoph Reiter) (#740301)
- Fix a test with Python 3.1/3.2 (Arfrever Frehtes Taifersar Arahesis,
  Christoph Reiter) (#740324)
- tests: Use places kwarg for assertAlmostEqual
  (Arfrever Frehtes Taifersar Arahesis, Christoph Reiter) (#740337)
- Print exception if marshalling a signal argument fails
  (Christoph Reiter) (#748198)
- overrides: allow treemodel sequence shorthands (Marinus Schraal) (#766580)
- Remove pygobject-external.h (Christoph Reiter) (#767084)
- Remove pygobject-private.h and rename pygobject.c to pygobject-object.c
  (Christoph Reiter) (#767084)
- Merge pyglib-private.h into pyglib.h (Christoph Reiter) (#767084)
- Remove pygi.h and pygi-private.h (Christoph Reiter) (#767084)
- configure.ac: post-release version bump to 3.21.1 (Simon Feltman)

3.21.0  24-Apr-2016
- gi: Add require_versions() function (Dustin Falgout) (#761141)
- test_gerror_novalue: Don't assign the error to a variable
  (Iain Lane) (#764165)
- build: Do not enable code coverage based on lcov
  (Emmanuele Bassi) (#764075)