Receive several quickstart related questions every day.  Make a
first pass at cleaning up our documentation to point people
in the right direction.  While we are about it remove compose
related bits.  Anything in the compose directory will remain as
a reference implementation for how to implement the compose
files to work well with our container content.

Change-Id: I9e832e97ac2bacca8eab7e1bfbd82664d2b191b8
Closes-Bug: #1485163
Paritally-Implements: blueprint remove-config-internal