setup.py: Read version directly from png.py without importing
Fixing URLs, mostly google to github.
typo
Prep for release 0.0.15
Notes for release 0.0.15
typo
Merge branch 'master' of github.com:techtonik/pypng into techtonik-master

Conflicts:
	setup.py
Merge pull request #1 from drj11/master

Backport from main