updates UI to bootstrap v2

fixes #1324 - Separate permssions on hosts from permissions for objects within hosts.

This allows a user to be granted permission to edit the host (and so change the group or proxy) but not, for example, edit the parameters
This could probably be extended further if necessary.

fixes #1399 - Hostgroups not attaching to Nodes

fixes #1304 re issue the fix as it seemed to get only half merged

WIP rails3 migration

new UI for foreman

fixes #1009 - hostgroup should show its parent classes too

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

UI updates

• login colores updated.
• updated the puppets classes selection gui

Signed-off-by: Amos Benari <abenari@redhat.com>

updates host forms

fixes #561 - Not all puppet classes are shown in the hostgroup edit page

fixes #419 - switching hostgroups does not update the associated classes page

Minor html layout formatting fixes

XHTML compliance

• added better module detection to properly show the module list
• Add sorting to module class lists
• Add description to each link

• Remove active scaffold from hosts controller.
• changed default host graphs from one day for up to one week
• added dynamic dropdown boxes for host creation / edit page (e.g. for puppet classes, operating systems etc)....