added usage warning when using hypervisors

audit with association.

fixes #1649 Puppet class and environment import works only on the first smart-proxy

fixes #1697 - hostgroup class listing showed all classes regardless of environment

audit as twitter and versions for template.

This also closes #1377 as it offer versions and diff view of the tempates.

it is not ideal, but it should handle the most common case for now,
where we should open other feature requests to support all of the ideas in #1377

wip audits upgrade

fixes 1692 - bookmark edit dialog, did not allow to save / update bookmark name

[ec2] added the ability to create multiple security groups

minor fixes to host show page

added vm tab