Increase time windows attempting to fix the sporadic testing failure
Change MiqApproval#approver to use a nil user when roles should be used.

Previously, approver could be set to a UiTaskSet, which meant that
anyone with the approver role could be an approver.  This is now handled
by setting approver to nil, making approver just represent a User
instead of both a User and a UiTaskSet.

Since UiTaskSet is no longer used technically, we instead verify only
against the miq_request_approval MiqUserRole, which
MiqApproval#authorized? had already handled.

Fixes #473
https://bugzilla.redhat.com/show_bug.cgi?id=1130146
Update default repo name for v5.3

https://bugzilla.redhat.com/show_bug.cgi?id=1102287
Add the exposure of relationships to other models to Automate service models

   for Cloud resources like Availability Zones, Cloud Network, Floating IPs

https://bugzilla.redhat.com/show_bug.cgi?id=1131591
Add test cases for the exposed relationships to other models

  of Automate service models for Cloud resources like Availability Zones, Cloud Network, Floating IPs.

https://bugzilla.redhat.com/show_bug.cgi?id=1131591
Merge pull request #456 from lfu/expose_in_cloud_ae_models_1131591

Add the exposure of relationships to other models to Automate service models
Merge pull request #506 from brandondunne/update_subscription_channel_names

Update default repo name for v5.3
EMS Refresh of Amazon Virtualization Type

https://bugzilla.redhat.com/show_bug.cgi?id=1133780

This is the code changes to populate the hardwares and flavors
table with the virtualization type for Amazon Images and for the Amazon
flavor types. 2 new columns have been added to the flavors table and
a single column has been added to the hardwares table
The virtualization type is documented on the amazon web page at
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/virtualization_types.html
Merge pull request #495 from Fryguy/fix_provision_ui_task_set

Change MiqApproval#approver to use a nil user when roles should be used.
Add SCL channel when registering.

https://bugzilla.redhat.com/show_bug.cgi?id=1135052
Merge pull request #485 from bzwei/duplicate_blocker_spec

Tuning time parameters to fix the sporadic testing failure
Merge pull request #507 from brandondunne/add_SCL_channel_when_registering

Add SCL channel when registering
Merge pull request #501 from mkanoor/bugzilla_1133780

EMS Refresh of Amazon Virtualization Type
fix region to region communication

- vmdbws controller accepts username/password
- the password is unique per installation due to encryption w/ v2_key

https://bugzilla.redhat.com/show_bug.cgi?id=1135072