Simplified the mongodb configuration

Conflicts:
	packstack/puppet/templates/ceilometer.pp

Change-Id: I416b204097700f517cac29dc22b075ff1e7f716f
Fixes test_utils resolution problem

Deleted tests that tried to access:
google-public-dns-a.google.com which conflicts
with the jenkins jobs

Change-Id: Iedfab3e9a3278825e0871ca6cfc745c7f2d0d1e5
Merge "Simplified the mongodb configuration"