Make a developer doc

[samking]

Make a Google Doc that details everything that a developer needs to know:

• how to set up a local development environment, check out the code, and push the code to the live site and the dev site
• a simple explanation of our development cycle -- I think that http://nvie.com/posts/a-successful-git-branching-model/ works well
• our backup schedule, how to force a backup, and how to restore from a backup
• the changes that we made to our Apache setup
• other stuff I'm forgetting?