UI - more explicit button description for the add child node.

updates UI to bootstrap v2

fixes #1333 -Destroy vs Delete inconsitent naming

Signed-off-by: Florian Koch <florian.koch1981@googlemail.com>

WIP rails3 migration

fixes #1282 - added smart variables to settings menu.

refs #1231 smart variables ui improvemnts

1. Moved remove button to the action bar.
2. Fixed remove of new variable.

fixes #1231 - make first pill active by default vertical pills

wip #1231

fixes #1046 - Error when editing a lookup key

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....