fixes #14041 - don't call select2 on CR form templates

select2 must be called only when the select becomes visible, not for
hidden template elements. add_child_node() already does when adding a
new set of fields from the template. without_select2 is removed from...

Fixes #14204 - list only bridges for bridged networking

Fixes #9932 - fix preallocate attribute mapping

fixes #12436 - as a user I want to deploy vSphere vms on a storage pool

Fixes #12949 - Allow selection of external networks as main network in Openstack

Fixes #13343 - Compute resource network modal is misaligned

Notice I also changed the help inline to be a popover, as per
Patternfly's recommendation -
https://www.patternfly.org/patterns/field-level-help/

Before: http://i.imgur.com/tVokboI.png
After fixing: http://i.imgur.com/AJusnmF.png

Fixes #4629 - Migrate UI to Patternfly

Fixes #12937 - All parameters can be hidden

The js to hide parameters was moved to lookup_key.js which isn't
included in application.js so only templates that include it
specifically can hide values.

fixes #8295 - add vsphere memory and cpu hot add

Fixes #10889 - Allow selection of resource pool