Update install/developer instructions to use ansible
Delete unused install/sql scripts

No longer necessary with the ansible deployment setup
Fix directory/path structure
Remove media/static root settings, use local_settings.py instead
Fix incorrect prefix for languages in slugfield of topic
Add vagrant file with settings

- Uses a different box than default precise32 to get
around annoying locale settings; the precise32-server
box is the same one used by Amazon EC2 AMIs
- Set up provisioning with Ansible
Add file for Ansible to know which servers to push to

Will need to update this once we get staging/production servers
set up. Currently only set up for use with vagrant.
Add gunicorn config template
Add nginx config template
Add local_settings.py template
Playbook for setting up nginx and gunicorn
Add playbook variables specific to [vagrant] host
Add playbook for Django set up
Add playbook for database set up
Add playbook to install system/python requirements
Top-level playbook for what playbooks to run
Remove unused variables
Add default for vagrant for google maps key and state
Remove unused code
Add instructions for how to deploy to other hosts besides vagrant