bump version

Merge pull request nodegit#835 from nodegit/fix-manual-install

Fix manual install

bump version

bump version

Update README to show 0.6.0 as stable

Merge pull request nodegit#733 from nodegit/bump-version

Bump version to 0.5.0

bump to 0.4.1

Update changelog to reflect 0.4.0 version

Bump to 0.3.3

Bump to 0.3.2