Renamed rax_clb to rax_clb_nodes since it's node management and not clb creation
Added replacement rax_clb that does LB detailed creation
Updates to rax_clb module
If you try to delete a balancer that isn't there, don't blow up
Rename rax_clb to rax_clb_nodes in docs and examples
Merge pull request #4835 from sivel/rax-clb

Add module to create Rackspace Cloud Loadblancers. Fixes #4794