As a UI user, I want to see content host and content view counts for environment paths.
|Assigned To:||Eric Helms|
|Target version:||Sprint 40|
|Velocity based estimate||16 days|
|Release||Katello 2.1||Release relationship||Auto|
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.