Individually skip the custom plugin test cases, rather than just not even running them.
Individually skip the custom plugin test cases, rather than just not even
running them.

christopherjwang/rackspace-monitoring-agent,cp16net/virgo-base,virgo-agent-toolkit/rackspace-monitoring-agent,cp16net/virgo-base,AlphaStaxLLC/rackspace-monitoring-agent,cp16net/virgo-base,kaustavha/rackspace-monitoring-agent,kaustavha/rackspace-monitoring-agent,christopherjwang/rackspace-monitoring-agent,AlphaStaxLLC/rackspace-monitoring-agent,cp16net/virgo-base,virgo-agent-toolkit/rackspace-monitoring-agent,cp16net/virgo-base