Enable exception format checking when testing.

Updates our new exception base class to enable exception
format checking. This should help enforce that we pass
the correct kwargs to exceptions when testing.

Change-Id: I9ac62e289c0de3931861473912bb6c98b57d4126
Change the quantum-ns-metadata-proxy log file name.

Add a '-' before the router_id/network_id for easier parsing
when starting the ns metadata proxy.

Fixes bug 1161124

Change-Id: I408111d1343ecac297f6277e8067d3fa34bb8cb7
Merge "Change the quantum-ns-metadata-proxy log file name."
Merge "Enable exception format checking when testing."
vse plugin
enable LB, delete pool
pep8 format fix
fwaas extension