Stop doing special things with setuptools

pip 1.4 can handle the distribute/setuptools upgrade sequencing
appropriate. So it turns out all we need to upgrade is pip, and then the
rest will fall in to place. This will still not fix the packages vs. pip
interactions, but we don't to muck with the system setuptools packages
at all.

Change-Id: I99220ccc190798c3eb77bb2361abc6606bd546b4
Install schema-image.json

Otherwise a warning is logged during startup

Change-Id: I958ab8bb7bce474d3e6854b43bb4709986fb61d4
Fixes: LP Bug#1222797
Only run chmod/chown for local files

When the /opt/stack directory is NFS mounted, chown to
the local user might not work. Create safe_chown and
safe_chmod functions that do nothing on NFS filesystems
to avoid spurrious errors.

Change-Id: Iaa68879e867a4426b1990d4d46164769177dc7cc
Added Trove (Database as a Service).

- Added changes to stackrc for the Trove Repos.
- Added support to devstack for "install", "configure",
  "init", and "run"

implements blueprint:trove-devstack-integration

Change-Id: Ib3f6daad33e629f764a174b80762c808ce8588e2
Merge "Added Trove (Database as a Service)."
Merge "Stop doing special things with setuptools"
Merge "Only run chmod/chown for local files"
Merge "Install schema-image.json"
Merge branch 'master' of github.com:openstack-dev/devstack