Fixing button groups in workout navigation.

Were separated instead of forming groups.
Handling newly updated list of RunKeeper workout types.
Added support for Other as a sport type + Volleyball.
Added dummy 'Analyze' page.
WorkoutBands: Displaying labels for months
WorkoutBands: Computing and updating visualization data.
WorkoutBands: displaying full width (responsive) black bars.
WorkoutBands: Full black bars for all months.
WorkoutBands: Displaying monthly exercise bars!
WorkoutBands: Displaying list of all sports above the chart.
WorkoutBands: Moving chart down to make space for value axis.
WorkoutBands: Animating initial showing of bars.
WorkoutBands: Adding value axis and grid.
WorkoutBands: centering time axis labels.
WorkoutBands: adding mode controls (Time/Distance/Elevation).
WorkoutBands: Also computing distance/elevation aggregations for the chart.
WorkoutBands: Chart updates (w/ transitions) on value-mode change.
WorkoutBands: clicking on sport icon moves it to the front.
WorkoutBands: Displaying icons of sports under the chart.

Moving clicked one to the front works and gives a nice animation.
WorkoutBands: Adding forgotten style file.