Refs #372: Outline what needs to be done for a deploy
Refs #374: Add basic info about scaling
Refs #372: updates in response to review
Merge pull request #374 from rapidsms/374-scaling

Add basic info about scaling
Merge pull request #372 from rapidsms/372-outline-deploy

Add outline from fabric deploy function
Merge remote-tracking branch 'remotes/origin/provisioning' into doc-nav

Conflicts:
	docs/topics/deployment/index.rst