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 #1000 Out of sync shows hosts with last report equal puppet_interval

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/<fqdn>/lookup_values/<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 #100 - Setting is now a ActiveRecord object

This allows users to manage foreman settings via the UI.

the UI is a bit ugly, but works :)

fixes #1010 - import new classes does not show error-message

fixes #35 - Allow hostgroup nesting for puppet classes and parameters

Fixes #820 - Intel Solaris support

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

minor cleanup - refs #836

fixes #956 return custom number of reports

Signed-off-by: Corey Osman <corey@logicminds.biz>