Do not enable auditing while executing rake tasks / migrations

fixes #1613 - Email address format validation preventing admin user creation

audit with association.

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

make sure tests can run independtily

fixes #1586 -Root password inheritance doesn't seem to work properly

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

fixes #1544 - Updating a host fails if you cannot reach the SOA nameservers

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