note disable ComputeCapabilitiesFilter w baremetal

As noted in the bug report, using ComputeCapabilitiesFilter
with baremetal deployments breaks things. This patch adds a note
requesting that users disable it in this scenario.

fixes bug 1129485

Change-Id: I0fb39fc2d2c2255b803502fb83b8d95b7b6188e8
Add quota_fixed_ips to nova conf ref

Grizzly brings a new feature quota_fixed_ips, which this
patch documents - including its default value of unlimited

fixes bug 1161190

Change-Id: I013bccaeff5372b3360e6b16b7b9b20b8ff52aad
Merge "note disable ComputeCapabilitiesFilter w baremetal"
Merge "Add quota_fixed_ips to nova conf ref"