Restrict mongodb listening to admin network

Less exposure to potential security issues.
Start Ceilometer services directly
Fix typo bug
Merge pull request #20 from MirantisDellCrowbar/bug/DCB-149/pebbles/master

Removing excrescent "end"
Add README file
Add correct hostname for compute servers list
Add tests for some VM meters
Checking if libvirt_type exists
Update 00-deploy-ceilometer.test
Merge pull request #15 from dirkmueller/release/pebbles/master

Restrict mongodb listening to admin network
Merge pull request #18 from MirantisDellCrowbar/bug/DCB-158/pebbles/master

Add README, libvirt_type on a compute node
Merge pull request #19 from dirkmueller/start_ceilometer

Start ceilometer