Outline of elk from postgres example
fixes #416
Document the release schedule and versioning system.
Merge remote-tracking branch 'origin/master' into elk-tutorial-563
Start with the flocker config proposed by Tom in https://github.com/ClusterHQ/docker-images/pull/7
add some pull commands
revert the change of node
Add a second deployment config with elasticsearch moved
Describe the components
	renamed:    docs/gettingstarted/tutorial/cleanup.rst -> docs/advanced/cleanup.rst
	modified:   docs/advanced/index.rst
	modified:   docs/gettingstarted/tutorial/index.rst
	modified:   docs/advanced/cleanup.rst
More introduction
A note about the environment
Pull all three images on both nodes.
the first flocker-deploy step
log some messages
Move ES to node2
A further verification and a conclusion
A warning about recreating the vagrant environment for this tutorial
quote the E, L, and K names for spell checking