Creating specs directory; may be moved later
Adding fix for Issue #348
Adding in updates for networking
Updating with Dan's comments: removing old -beta
Updating networking after talking to Madhu
Updated install with HA as optional
Moved HA spec into specs
Did "customer-facing" HA page
Renamed server > controller in docs
Entering comments from reviewers
Signed-off-by: Mary Anthony <mary@docker.com>