Making harbour QA happy

No functional changes, just a little renames and stuff to make Jolla QA happy
:-)
Do not refresh when not active

Stopping timer when application is not active - aka full screen open.
Adaptive graph

From now on, y-range of the graph is set based on the values to be displayed.
More polishing UI

Graph is now redrawn whenever user switches back to the application. Also
caught one little ugly bug in making y-range pretty.
Version bump

New version has graph that uses adaptive y-range.
Add donation links