This PS allows the neutron and nova charts to dynamicly adapt to
various backends.
Depends-On: I0ec13f45fd4561fec59d08b08eb78390a3866156
Change-Id: I1891af4b0e49237e229ff5e61e907dc3e413cf87
This PS moves the neutron configuration to the gate scripts, rather
than mixing it between set and values commands, which was hard to
follow.
Change-Id: I94035d2af15efbe961366ae0427b39721b7aff78