Fix #125. Update Pillow to require at least 2.2.2

Pillow version < 2.2.2 won't build on Mac 10.9
Merge pull request #127 from wyuenho/patch-1

Fix #125. Update Pillow to require at least 2.2.2
Bump glue to 0.4.1
Merge branch 'master' into 0.9

Conflicts:
	AUTHORS
	docs/changelog.rst
	glue.py
	setup.py