fixes #1509 - Foreman should use the proxy to import puppet classes

fixes #1446 - expire idle web sessions

WIP rails3 migration

fixes #1077 - Ensure that host OS attributes are related to the OS itself

Fixes #565 - rake puppet:import:puppet_classes misses some changes

Signed-off-by: Paul Kelly <paul.ian.kelly@googlemail.com>

Fixes #670 - Adds proper json support for most CRUD operations

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 #303 - cleanup flash hash from activescafold leftovers

Fixes #450 - Environment imports lose their puppetclass associations

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 #386 - Updated rake puppet:import_classes to support the new API

The rake task now queries for the changes and then performs the update.

Some additional sanity checking is performed in the execution phase.

A batch mode is provided via rake puppet:import:puppet_classes[true]. When...

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,...

• added support for JSON queries for environments and their respective hosts

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.

Fixes #204 - Remove AS from environments page

Merged import facility in Environment and Puppetclass controllers

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...

renamed some variables

corrected typo

environments_controller_test on green

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