stopLRPInstance calls the cell client

* removed stopLRPInstance queue from etcd
* removed stopLRPInstance watcher
* added cell_client
* added routes

Signed-off-by: Alex Suraci <asuraci@pivotal.io>
Small rewrite of lrp_bbs_test wrt DesireLRP

The tests for this method were all over the place; now they live near
each other.
ActualLRPStateStarting -> ActualLRPStateClaimed

    [#83638702]

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
WIP - add CreateActualLRP, Unclaimed state, Validation of unclaimed actual lrp

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
WIP

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
Return single instances for ProcessGuidAndIndex methods

[#83638702]