Fixed WeeklyActivity, it now takes actual information from the database.
Some minor adjustment of the statistic layout. Activity diagramm shows now 14 days instead of 7.
Added yellow avg line to bar chart.
Added missing activity. Landscape can be used in MainActivity.
Added Sound and Vibration. They can be switcht on and off in the settings. Also app can on pressing sleep switch into airplane mode.
Added about dialog. Also about dialog will be shown if app recognised a new version.
Days are now calculated correctly. Also ranking is now correct.
Weekly summary redesign, with correct column lables and is scrollable.