Improvements to map downloaded from interactive map

[sophiathirza]

• [ ] Customisable title
• [ ] Scale bar
• [ ] North arrow
• [ ] Customisable symbology (opacity, marker type)
• [ ] Print size (A4, or other)
• [ ] Legend
• [ ] The map itself could be included in a frame instead of running right to the edge of the image.
• [ ] Better background (at the moment we use our own ‘World’ layer, but it would be good to be able to offer something better: if the Google satellite image is not permitted then possibly an OpenStreetMap layer or the road or terrain layer)