Take arrow icon into use for geolocation.

Fixes #180.
Merge branch 'master' of github.com:City-of-Helsinki/servicemap
Formatting.
Simplify marker rendering event handler responsibilities.

Fix bug where already rendered unit markers were rendered twice when a
search was made in a situation where one of the search result units was
already on the map before the search.
Fix bug in p13n change listener.

Fixes #196.
Comprehensive event date formatting module.

Handles three different detail levels for different UI contexts,
three languages, multi-day events and event time displaying
peculiarities.
Add support for retina (HiDPI) tiles \o/
Extract event date presentation logic into one place. Fixes #106.
Switch to using the Lato font to match with the new map styles
Start using Swedish language maps

Fixes #188.
Implement unit detail text expander for long descriptions.
Fix opaskartta layer name.