Brief explanation of branching
Talking about merging in Git
Adding GitHub to tutorial
Import installation test scripts from boot-camps repo.
Fix typo.
Merge pull request #17 from douglatornell/typos

Fix typo.
Merge pull request #16 from douglatornell/setup-check

Import installation test scripts from boot-camps repo.
Fleshing out description of GitHub and adding discussion of licensing issues
Merge branch 'gh-pages' of github.com:swcarpentry/bc into gh-pages
Adding a CITATION file to the bootcamp template repository