Quantum cleanups

* Set base default env vars in lib/quantum
* Rename common dirs to match devstack conventions
  Q_CONF_FILE -> QUANTUM_CONF
  QUANTUM_CLIENT_* -> QUANTUMCLIENT_*

Change-Id: I7a2a92b50ef953195f078ac62cb975f28892c05c
diff --git a/stackrc b/stackrc
index 39d34b0..8ac6ec5 100644
--- a/stackrc
+++ b/stackrc
@@ -89,8 +89,8 @@
 QUANTUM_BRANCH=master
 
 # quantum client
-QUANTUM_CLIENT_REPO=${GIT_BASE}/openstack/python-quantumclient
-QUANTUM_CLIENT_BRANCH=master
+QUANTUMCLIENT_REPO=${GIT_BASE}/openstack/python-quantumclient
+QUANTUMCLIENT_BRANCH=master
 
 # Tempest test suite
 TEMPEST_REPO=${GIT_BASE}/openstack/tempest.git