Data now combines walk intervals. Bubblechart now works with new dataobject.
Added separate color class that defines the colors of all the chrats
Menu is styled
Added highlighting color and switch option to clock24 and bubbleChart
Added highlighting to clock12
Added highlighting to timline
Fixed performance issue with bubble chart.
Removed first and last day from data-set to ensure no incomplete days are present
Changed the chrage function slightly in bubbleChart