Fixes #6256 - Handle a nil value in kt_env for hostgroups
Fixes #5523: Content host available releases are now calculated based on content view.
Merge pull request #4256 from ehelms/fixes-5523

Fixes #5523: Content host available releases are now calculated based on...
Merge pull request #4288 from GregSutcliffe/6256

Fixes #6256 - Handle a nil value in kt_env for hostgroups
Fixes #4647: Hide 'Sync Now' button on feedless repositories.
Merge pull request #4306 from ehelms/fixes-4647

Fixes #4647: Hide 'Sync Now' button on feedless repositories.
Fixes #4981: Update link to custom content repositories on sync management.
Merge pull request #4309 from ehelms/fixes-4981

Fixes #4981: Update link to custom content repositories on sync manageme...
Fixes #5543/BZ1102322 - fix content search autocomplete.

Autocomplete was broken for products, repositories, and
content views in different ways.  This fixes each.
Merge pull request #4310 from waldenraines/5543

Fixes #5543/BZ1102322 - fix content search autocomplete.