Fixes #263 - Refactored Foreman to use correct singular and pluralization of medium/media

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 #65, Fixes #339 and Fixes #539

• Smart proxy CRUD within Foreman
• Subnet operations
  • CRUD
  • Finding the next free IP (via the dhcp proxy)
• Association of subnets, domains to proxies (dns, dhcp and tftp)

Fixes #378 - Adds support for multiple configuration templates

Configuration templates (Kickstart, preseed, syslinux, gpxe etc) can now
be saved in the database directly.

Each template is associated with valid operating systems (unless if its a
snippet which can rendered via all other templates) and a possible...

Fixes #168 - optional unattended settings

fixes #438 - automatically associate the host domain

This reverts a bahaviour prior to #398, the main difference
is that the domain will not be created, rather only existing
will be used.

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

Fixed an issue with metric processing on 0.25.x reports, refs #405

Fixes #405 and Fixes #349 - Adds support to 2.6.x reports

NOTE: Its recommended to Backup your DB prior to using this patch.

Added a basic notice facility to foreman

Notice.create :message => "text", :level => level, :global => boolean
if global is true then any user can cancel that message for all users
else each user must cancel the message individually

level can be "warning" or "message"...