Bugs
====
Fix reversed mouse-wheel
Handle machines which only provide charge/current rather than energy/power
Different handling of ranges on log pages with ->test null and not
Do a better job of cleaning up the Super-Q at the end of recorded logs.

Cleanups
========
Add idle-exit to the helper
Move event *writing* to event-log.[ch]
Consider switching to upower

Enhancements
============
Remember in GSettings the users selections for the test
