fixes #2710 - removed a superfluous os name check that was tripping up safemode.

fixes #2404 - prevents 404 when updating invalid name used as id

Fixes #2655 - Display Host buttons on unmanaged hosts if a puppet proxy exists

fixes #2489 - fixes BMC password caused by rails bug accepts_nested_attributes_for and serialized child field

fixes #2484 - host, hostgroup, and BMC passwords were overwritten as blank

fixes #2656 error connecting to vsphere after upgrade to ruby 1.9.3

fixes #2670 - fix apostrophe quoting issue
(cherry picked from commit 4298bd841c3fb2b3f639f06d4cbbb3901f56ec06)

Fixes #2640 - use relative user logout path

Fixes #2642 - Display build button if host type has changed

Fixes #2641 - Add type_changed check to JS to allow form to refresh when provisioning a discovered host