fix view controller rotation in a few places
a couple of minor chart modifications
set preferredMaxLayoutWidth of notes label in summary view
workaround bizarre UIBezierPath behavior in chart::FILL_BG mode
disable relevant activity toolbar items if no GPS data available
only run the smoothing filter once, rather than once per chart item
fill background of charts; tweak height of landscape charts
charts go fullscreen on long-press gesture
set layer.drawsAsynchronously in charts, it actually makes a difference!
show distance in map lap annotations, remove unused code