romaonthego/REMarkerClusterer — pull request #14 by jaydee3 (2013-09-20 13:06:50+00:00)
Title: Use protocol instead of class, so you can use existing model objects

Basically you could just use id, but for nicer semantics, I created an REMarker protocol.
Also for backwards compatibility and convenience I did not delete the REMarker class, but it conforms to the new protocol now.

This makes it possible to use existing Models by just adding to them. Then you also don't need the userInfo anymore. The markerId is also not used internally, so both are not part of the protocol.