Progress bar while uploading files

Progress bar while uploading files

Hi :)

When uploading big files it would be helpful if there was a progress bar. Sometimes an upload is broken but zdocs doesn't recognize it and there is still this "Scanning for Viruses".
After uploading 10MB for half an hour you probably think hmm maybe sth. wrong there let's try it again...
Due to this a progress bar with estimated time and upload speed would really be great (in my opinion). Same problem in the MailApp btw.

Anyway, thanks for your great work! :)