Filter data by area

[k-nut]

@illume wished for a way to get a calendar by area. I would probably create a route like /by_area?north=52.10&south=52.00&east=10.0&west=10.10 it would return all the markets that are in that area. Does that sound like what you were thinking about? (Displaying a nice calendar thingy would then be left up to the api consumer [where the support for parsing opening hours is even better in the javascript world anyways])