0.01: New App!
0.02: Modified data format to include daily summaries
0.03: Settings to turn HRM on
0.04: Add HRM graph view
      Don't restart HRM when changing apps if we've already got a good BPM value
0.05: Fix daily summary calculation
0.06: Fix daily health summary for movement (a line got deleted!)
0.07: Added coloured bar charts
0.08: Suppress bleed through of E.showMenu's when displaying bar charts
0.09: Fix file naming so months are 1-based (not 0) (fix #1119)
