fixes #1181 - Host searching returns duplicates

Revert "Upgraded Rails version to 2.3.14"

it seems that newer version of rails break rubygems 1.3.x which is what
RHEL5 based machines use.

after 0.4 release we would force ruby 1.87+ which would allow us to
switch to rails 3.x instead.

This reverts commit 21b8b415c84417469fc0016c51f7be53d56ffb78.

Upgraded Rails version to 2.3.14

This release contains critical security fixes.

removed non required plugin, and updated reference puppet modules

fixes #1111 - search auto completer should not suggest hosts which are not visible to the current user

fixes #777 - this enable auditing of when a host is changing its puppet class assignmetns

one limitation of this patch is that at the moment, each class change
gets its own audit record.

fixes #35 - Allow hostgroup nesting for puppet classes and parameters

fixes #993 postgres search issue

Signed-off-by: Amos Benari <abenari@redhat.com>

fixes #965 and fixes #964

Signed-off-by: Amos Benari <abenari@redhat.com>

fixes #900 - search by "x minutes ago" and the charts in show host

Signed-off-by: Amos Benari <abenari@redhat.com>