Remove some keystone resource parsers

Current "keystone" command can parse the specified resources(tenant,
user, role, service) by itself. Then it is unnecessary to translate
resource names to resource ids in devstack.

This patch removes these resource parsers from devstack for cleanup.

Change-Id: Ibae06581b471f02168b559b4ca0c10f14996d661
Skip Nova exercises if Nova is not enabled

This allows for ./exercises.sh to complete sucessfully when nova is not
enabled / installed.

Change-Id: If969e14f5106c15007146e8fad1da27d131828c8
Add sanity check framework to verify neutron server/backend integration

Some Neutron plugins require controllers and multiple backend services
to operate correctly. This patch adds the framework for third party
plugins to run sanity checks after Neutron Server has started.

This simple addition may reveal potential configuration pitfalls
much earlier in the dev/test cycle, thus speeding up the build
churn process.

The first plugin that uses this framework is the VMware NSX one.

Closes-bug: #1265671

Change-Id: I17f9c5c8e828316ff03f0eff42ae4ae6c6c58733
command not found errors on unstack

- add lib/ceilometer and lib/heat to source list for when stop_heat
and stop_ceilometer functions are called.
- add lib/tls source to lib/keystone for when is_ssl_enabled_service
function called.

Change-Id: Ief05766e9cfda71fb6392c8a757d04751283414e
Closes-Bug: #1269047
Run neutron-debug with admin tenant in neutron-adv-test

Because neutron-debug create-probe needs admin role only, demo tenants
cannot create ports. neutron-debug is wrapped in order to run it only
with admin tenant.

Change-Id: Ib65e8639858c597345c6a5fdc0192b40f34a0300
Closes-Bug: #1269090
Revert "Change the libvirtd log level to DEBUG"

Suggested by Daniel Berrange in this thread:
http://lists.openstack.org/pipermail/openstack-dev/2014-January/024407.html

This reverts commit 3bd85c9d6e257fc952cb3c6d0c09e199685bd5ed.

Change-Id: I370ba61cf8a00b51684cd504fed4ba4078d868be
Merge "Skip Nova exercises if Nova is not enabled"
Merge "Run neutron-debug with admin tenant in neutron-adv-test"
Merge "Revert "Change the libvirtd log level to DEBUG""
Merge "Add sanity check framework to verify neutron server/backend integration"
Merge "Remove some keystone resource parsers"
Merge "command not found errors on unstack"
Merge branch 'master' of git://github.com/openstack-dev/devstack into opendaylight