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...

Fixes #8796 - Fix to_gb size calculation and constentize

fixes #8356 - refactor reset method for libvirt

Fixes #746 - Generate all the Host template when click on Build to avoid errors during installation

Refs #3809 - Use parentheses in method definitions

Refs #3809 - Fix a few rubocop TODOs

fixes #3902 - [Openstack] allow selection of internal networks

This patch allows the user to select the internal network when deploying
a new instance in openstack.

In Grizlly, this was done automaticilly, with a nasty side effect, that
all internal networks would get assigned (didnt see that as i had only...

fixes #5119 - ensure GCE can list images.

fixes #4590 - convert VMware SCSI controller type during creation

fixes #5132 hang when provisioning on ovirt 3.4