Use .gitignore rather than .bzrignore
Code is now hosted on Github
Remove logic to get version from bzr revno

This is a regression, as now running `python setup.py sdist` on
trunk will no longer include the revno of the snapshot.
Refer to Github, not Launchpad
Correct URL for testing cabal.
Whitespace correction
Instructions for tagging with git.
Merge branch 'master' of github.com:jml/testtools into git-not-bzr

Conflicts:
	MANIFEST.in
Merge pull request #2 from jml/git-not-bzr

Update documentation and support files for move to Git from Bazaar.