fixes #455 - selected items are not shown as selected

fixes #454 - Foreman render 500 instead of 404

• Fixes the not found method
• generalize the find_by_obj_name method so we DRY abit more

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

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"...

Fixes #239 - Erases environments and puppetclasses

The fix also includes a page in which the use selects the additions
and removals which they would wish to apply to their database.
Errors are reported and an opportunity is given to reapply the changes.

XHTML compliance

fixes #276 - Fact searches should remember the previous search settings

fixes #274 - The Reset link of the search bar does not work on the reports page

minor formatting change to allow edit habtm to look a bit cleaner

Fixes #212 - Remove AS from facts