875184 - give some sort of link to the Systems view from the Subscriptions widget in the dashboard.

This change makes the text on the dashboard "Total Systems" into a link.
Also, each category of system links to their respective statuses:
red, yellow green.
Merge pull request #3056 from mkelley33/total-systems-link

875184 - give some sort of link to the Systems view from the Subscriptio...