First pass at apache setup.
Chef recipe updates.

Rename stock "pope" cookbook to "clearinghouse."

Make sure bootstrap ubuntu packages are always installed.

Add authorized keys file.
Add deploy keypair.
Update docs, update required packages.
Let deployer user own the project dir.
Change db user to current standard, "clearinghouse."
Use custom-installed ruby for passenger.
Always install bootstrap gems in right order.
Ignore log/, tmp/ etc for chef .
Update chef documentation.
Streamline default cookbook, remove comments, add some dependencies.