Make UI more intuitive and more consistent: status pane

In the expanded view the status pane shows very useful information. It could be improved with some minor changes:

1. Add more detailed Header information. Is the source showing Elapsed Time. Is the speed the Average Speed. If so add that to the column title. I notice that during copy the speed showing in the mini-viewer at the top is constantly changing and is different than the speed in table 1.

2. Move the list of files in progress to the bottom of the pane as the list can be changing the amount of space that it uses and most of the time seeing what files are being worked on is less important that the information in the tables.