Fixes #8861 - Lengthy organization or location names showed in tooltip

Fixes #10111 - Use a dummy primary interface for unmanaged hosts

Unmanaged hosts require a host interface due to delegation of networking
attributes, and some others like 'name'. Since unmanaged hosts do not
necessarily have an interface associated (unless created through puppet...

Fixes #9391 - Added validation code to NIC, so it validates that host's location/org is compatible with the one set on NIC's subnet

fixes #10158 - use full column name to avoid ambiguity on Rails 3.2.8

fixes #9998 - Add styling to error reporting

Fixes #10153 - pull in host_edit_interfaces.js also in hostgroups

Refs #8106 - Add helper for add to dashboard button

fixes #10167 - change default API from v1 to v2

Fixes #8217, #8214 - Rearranging override section in smart class parameter page and host page

fixes #10020 - add next-server/filename attrs to provision NIC DHCP record

A host's DHCP record used to be constructed with PXE attributes in
Orchestration::DHCP, but moved to Nic::Managed during 43c4bd7. Nic::Managed
didn't add PXE attributes, so this commit adds these when provision? is set....