Remove some extraneous colons.
Make all the table windows have headers so everything lines up better.
Create a SystemView bar across the top of the system view. Remove it from the right-hand pane.
Fix expedited transfer dialog sliders not expanding properly.
Add methods and tests to get the cpu usage and pg usage in percent.
Add progress bars for CPU usage instead of boring numbers in the System View.
Includes a workaround for Gtk::CellRendererProgress that allows users to have a > 100% value, but not have Gtk explode.