Fixes #8440: Fix broken auto_complete URL in Package Filter UI.
fixes #7904 - adding autocomplete for errata

should be on any nutupane page that has errata including:

Content > Errata
Lifecycle Environments > Library > Errata
Content Views > Click a View > Click A Version > Errata
Merge pull request #4822 from ehelms/fixes-8440

Fixes #8440: Fix broken auto_complete URL in Package Filter UI.
Merge pull request #4826 from jlsherrill/7904

fixes #7904 - adding autocomplete for errata
Fixes #8404: Re-factor environments UI to show environment counts.

This commit updates the index page to show environment paths in a
table format with content view and content host counts. The new environment
functionality is moved to a stand-alone page.
Merge pull request #4816 from ehelms/fixes-8404

Fixes #8404: Re-factor environments UI to show environment counts.