Add models for cloud orchestration
Populate Reports tree children for a node only if reports exists.

The array that stores the reports (the children) for a particular Report
tree node was storing nils in the absence of the corresponding MiqReport
records, causing a "load error" in the Reports dynatree, which has
been fixed.

https://bugzilla.redhat.com/show_bug.cgi?id=1161744
Added ExtManagementSystem to the TAG_CLASSES list.

Added ExtManagementSystem to the TAG_CLASSES list so Cloud/Infrastructure Provider.My Company Tags: * can be displayed in list of fields in reports editor for the models that have relationships to ext_management_system.

https://bugzilla.redhat.com/show_bug.cgi?id=1160878
https://bugzilla.redhat.com/show_bug.cgi?id=1160879
Update and simplify spec

https://bugzilla.redhat.com/show_bug.cgi?id=1161322
[Openstack][provisioning] use Security Group ems_ref instead of name

Openstack allows you to create multiple security groups with the same name
If you attempt provisioning by name and there are multiple matches,
you will will receive an API error (HTTP 409 or 500).  Using the ems_ref
is guaranteed unique.  We display the name and description in the dialog,
so no further changes are required

https://bugzilla.redhat.com/show_bug.cgi?id=1161322
Fix typo
Update to Rspec expect syntax
No need to test #blank? method
Remove old unused code last modified 6 years ago.
Merge pull request #1063 from brandondunne/use_ems_ref_rather_than_name_during_openstack_provisioning

[Openstack][provisioning] use Security Group ems_ref instead of name during provisioning
Merge pull request #991 from h-kataria/show_ext_management_company_tags

Added ExtManagementSystem to the TAG_CLASSES list.
Merge pull request #1060 from AparnaKarve/bz1161744_nil_entries_in_reports_dynatree

Populate Reports tree children for a node only if the MiqReport records exist.
Merge pull request #1066 from brandondunne/update_provisioning_specs

Update provisioning specs
Merge pull request #1067 from jrafanie/remove_old_unused_code

Remove old unused code last modified 6 years ago.
Merge pull request #899 from bzwei/add_orchestration_models

Add models for cloud orchestration