Bug fixes for latest pecan

Seems upstream pecan fixed / enforces status results now.  So, now we
properly do things.

Also bump tox environment to 1.6 to handle pbr issues.

Change-Id: I25b322d9eca64a7952b82be0289d682b451079cc
Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>