fixes #2166 - error when clearing location

fixes #2124 - only include classes from the host current environment.

This patch introduce a new setting, which decide how would foreman
address a mismatch between host and hostgruop environments.

for example, when puppet classes (directly or indirectly via hostgroups) that do not...

fixes #2160 - do not store Finished catalog run messages

update to rails 3.0.20 to address CVE-2013-0333

changes to taxonomies_controller

clone action, view, tests

fixes #2033 - Cannot assign a host to an org

Now its possible to change Locations / Organizations only via mass assign

fixes #2001 - Changing Loc or Org after compute resource selection give 500 error

fixes #2151 - use DN environment variable instead of CN

nginx is unable to pass bits of the X.509 subject, only the entire DN, so
support that as a lowest common denominator.

[test] renamed wrong class name