fixes #1199 - hosts count in puppetclass page always shows 0

Note that this fix still ignores classes assgined via hostgroups.

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

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

views cleanup and added more operatingsystems icons

Fixes #292 - puppetdocs should be in a frame

Fixes #101 - Generate rdoc files and html links on the puppetclasses page

Rewite rdocs if required by the prepare phase
Incorporate Fank Sweetser's :: patch
Incorporate a url_helper suggested by Ohad
Added a new interface via links on the supported environments list

Add support for multiple puppet classes per host / operating system / environment etc
this should enable a proper dropdowns when creating the gui part that shows possible puppet class / operating system / env combinations

fix external nodes to actully work with multiple puppet classes...