Load hangs on no work

[rviscomi]

When there's no work to do, the app hangs during loading. This happens when a list of stargazers or locations is empty, and the loop is never executed. For example, a new user stars a repo but does not have a location defined. The locations array will be empty (assuming it was precached) and the app will hang.

Always check to see if the loop was skipped and handle the sentinel condition accordingly.