updating to support a different remote than origin
Update README.md
updates from PR review
this is what happens when we rush :(.  Fixed
Added support for a commit message suffix

Using the COMMIT_MESSAGE_SUFFIX env var
Update README
Merge branch 'master' of github.com:bellycard/middleman-gh-pages into bellycard-master

Conflicts:
	README.md
release 0.0.3
Remove a call to 'git checkout master' that is not needed.
Merge pull request #19 from jagthedrummer/source-branch-option

Remove a call to 'git checkout master' that is not needed.