Deployment Details Downloader show state when activity is re-instantiated

[hallahan]

During large downloads, the progress bar showing the download status stops updating, both the progress bar as well as the TextView showing how many MB have been downloaded. Maybe we lost track of our DownloadManager?

Also, returning to the view, we do not see the progress updating.

Look into keeping the DownloadManager in some sort of static collection ?

[hallahan]

See master #122

[hallahan]

Closed as of fb74e4a