Fixes #11089 - Adapt tests to Rails 4

This commit contains all changes to tests in branch
https://github.com/theforeman/foreman/pull/2055 that I found to be
retrocompatible with Rails 3. The more of these we can get in, the less
code we will have to review for Rails 4, and the more relevant it will...

fixes #10646 - disable NIC subnet taxonomy checks when feature's disabled

refs #10168 - fix test that created a duplicate primary interface

Subtle interaction between 4d5b979 and a5dc3e2, resulting in the test
that tried to add an interface to an unmanaged host duplicating the one
that was automatically added.

fixes #10234 - Fix NIC taxonomies validation tests

Some of the tests in #9391 changed the way subnets should work regarding
taxonomies and some test data, this commit fixes that so tests are green
once again.

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 #9434 - managed alias accepts only static boot mode subnet

Fixes #9631 - adds missing bond test

fixes #8358 - validate domain on host update

Fixes #9480 - multiple NICs integration with compute profiles

From users point of view:
- interfaces setup in compute profiles is back
- interface related compute attrs get merged into host NICs upon compute
profile selection
- NIC overview table displays details in the column "Type"...

Fixes #9495 - Require identifier for managed bonds

Fixes #9497 - Require MAC for managed BMC

Fixes #9429 - identifier is required for Alias and VLAN

Refs #3809 - Remove cops for empty lines

Fixes #7456 - Extract primary interface from host

• Tomas Strachota (tstrachota) <tstrachota@redhat.com>
• Marek Hulán (ares) <mhulan@redhat.com>
• Gregory Sutcliffe (GregSutcliffe) <gsutclif@redhat.com>

All host must have at least one primary interface and one provision (can...

Refs #3809 - Remove useless assignments

Fixes #8005 - Convert allowed NIC types to strings

- allowed NIC type classes need to be registered now
- api for interfaces use lowercase human readable values for defining types
- fixed output of api's create action to the standard format

Fixes #7733 - Remove hosts.yml fixtures and use FactoryGirl instead

Refs #3809 - Fix a few rubocop TODOs

Fixes #6444 - add support for virtual NICs

Extend additional interface details refs #2240

NIC facts parsing change and we create interfaces in Foreman according
to facts we recieve.

Subclasses does not define their own attributes and serialize them to
attrs hash. All BMC attributes are extracted to separate columns so it's...

Fixes #6518 - look up the BMC proxy via any subnet proxies, if present

fixes #3272 - allow 'admin' account to be removed and replaced

fixes #6374 - NIC hostname now blank when domain is present, but no hostname is given

fixes #5915 - Add support for Infiniband 64-bit MAC addresses

fixes #4599 - DNS and DHCP records for BMC and managed interfaces not using FQDN

fixes #3697, #3701 - more comprehensive field validations

fixes #2378 - added Minitest and other code cleanups

fixes #1814 - converts sp_* attributes into a BMC interface class

this patch also includes the following

• added a new interfaces table, and STI objects to represent a NIC, BMC, Managed
  and a bootable interface.
• refactored DHCP/DNS orchestation code, so they can work on the...