added background info and moved assets to dropbox
spaces
added cheat sheet file to resources
updates
updates
Merge pull request #1 from bswinnerton/master

Adding git commands, repo url and some housecleaning
Merge pull request #2 from bswinnerton/master

Fixing missing quote
Merge pull request #3 from bswinnerton/master

Fix missing quote
Merge pull request #4 from bswinnerton/master

Fixing RVM version
Update install_instructions.md

removed $ for prompts... confused people.
Adding answers to all exercises