fixes #271 - remove active scaffold plugin

Fixes #170 - implement usergroups

Added migration
Added tests
Added MVC files
Added the routes as well
Added the program logic and additional views
Added RESTful actions for update and create
Added validations to ensure that usergroup.name and user.login do not collide...

added puppet-foreman module as a submodule, this is required for people who are searching for the external nodes scripts, report,fact importer etc

added google_visualr and converted dashboard and hosts graphs

added searchlogic plugin

added rails 2.3.5 as a submodule

added basic pagination

added active_scaffold_list_filter plugin

added act_as_audited plugin, seems to be a better implementation than our onws

Squashed commit of the following:

commit c4382aeea5d72402bcbf3049d3c08f74792ca379
Author: Ohad Levy <ohadlevy@gmail.com>
Date: Thu Oct 15 22:03:26 2009 +0800

disable ldap by default

commit 685baf5f2c78128feebcbeed6910b131a072a81b
Author: Ohad Levy <ohadlevy@gmail.com>...

cleaned up git submodules

realigned models to use :though and habtm when it made sense, setup basic AS controllers to support that

added another plugin needed for rails 2.3 and ActiveScaffold

added active_scaffold as a git submodule