fixes #812 - new permissions model, user group role and nest support, role filters for better granularity

• Daniel Lobato <elobatocs@gmail.com>
• Joseph Magen <jmagen@redhat.com>
• Tom McKay <thomasmckay@redhat.com>
• Greg Sutcliffe <gsutclif@redhat.com>...

fixes #3920 - prevent 500 ScopedSearch errors on the API, raise UI errors correctly

fixes #2741 - rails 3 syntax

fixes #2969 - remove all legacy api code in UI controllers, add deprecation response

fixes #2488 - hosts/<fqdn>/lookupkeys/<key-id> api is broken

fixes #832 - adds parameterized class support

Credits:
This patch is based on the original work of Olivier Favre
<olivier@yakaz.com> many many thanks!

• import class parameters, and try to understand their types
• support a complex matrix of environments, puppet classes and their...

minor SQL improvments

fixes #1148 - CRUD on lookup values via the API

updated foreman puppet module to include the smart variables puppet function

this also ensures that the json response from foreman is always in json.

refs #1029

fixes #1029 - allows smart variables to be resolved via http get request.

this would allow to an external query to resolve a variable value to a given host.

e.g.
http://foreman/hosts/&lt;fqdn&gt;/lookup_values/&lt;variable_name>

fixes #322 Ability to add custom variables and multiple values resovled
in a dynamic Hierarchally order

This commits introduces the ability to define variables per puppet
class.

additionally, each class can have multiple values, depends on the host
which is requesting that variable....

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

fixes #303 - cleanup flash hash from activescafold leftovers

Some of the controller filters were running twice,
this way is the preferred way to ensure that they running only once where appropriate.

fixes #208 - use nested_attributes for lookup parameters

fixes #141 - add support to extlookup kind of queries through foreman
usage:
wget -q -O - "http://foreman/lookup?key=ntpserver&order[]=my.domain&order[]=common"
if you want it in YAML, just add:
wget -q -O - "http://foreman/lookup?key=ntpserver&order[]=my.domain&order[]=common&format=yml"