Merge pull request #10 from sandstroh/sandrosbranch

Sandrosbranch
Merge pull request #11 from sandstroh/sandrosbranch

Changes on AddNewActivityView:
ParkedActivitiesView:
- no longer only the name is shown, but also the length of the activity
- additional styling for the spans for name and length
CanvasView:
- specified canvas size with css: size = 100px x 150px
Implemented prototype of the CanvasView