Fixes #540 - Manages sub proxies

Automates the creation of DHCP, DNS and TFTP settings on remote servers.
This handles all required settings in order to prepare a machine for provisioning.

• Reservation will be created per host, setting the following options:...

Fixes #366 - Redmine authorization port

This is a major feature which provides RBAC authorization within Foreman
a mental note to myself - never ever work on large commits

fixes bug #398 - issue with adding hosts with full stops
This introduce a small behaviour change, before, once adding host like:
x.domain.net, foreman would automatically add domain.net to its domain
list, but now, as a full stop(".") is a valid hostname char,...

Fixes #145 - Added AuthSourceInternal

Added a password setting facility to the user class for AuthSourceInternal
Switched to SHA1
Changed :ldap to :login
Applied numerous fixes from Ohad Levy
Fixed malformed user page
Switched attr_accessible to attr_protected...

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...