Create README.md

Adds information about what we know the scope to be as of today
Merge branch 'master' of https://github.com/rackerlabs/developer.rackspace.com

Conflicts:
	README.md
Merge branch 'master' of https://github.com/rackerlabs/developer.rackspace.com
Adds create server example for Python
Merge branch 'master' into py-compute-samples