Merge pull request #26 from sandstroh/sandrosbranch

Added text shadow for activites to increase readablity
Replaced input textbox for description in the activity dialog with a textarea field
Changed the border of the parked activities to the same one as the day views
Replaced manual mouse over detection over activity to display the delete 'x' with :hover in CSS
Updated CanvasView to the new activity colors and increased the height of the ParkedActivitiesView
Fixed bug when dropping activity on itself: the 'dragOver' class wasn't removed correctly
Added span with 'min' after length in the activity dialog to clarify what the input should be
Replaced alert 'name must not be empty' in ActivityDialogView with a label under the textbox
Added additional check to the ActivityDialog that the length is numerical and greather than 0