Adding simple MarkerClusterer functionality

[jelicanin]

Now you can enable simple marker clustering functionality.

Mandatory lib: http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/src/markerclusterer.js

[jenswittmann]

Thanks for this solution, but it doesnt work with RemoveLocations(). Because the code don't update the clusters. Do you have an idea to fix it?

[DonWolli]

does not work with 0.2.10 for me. Are there any solutions? the(one) correct lib path is https://developers.google.com/maps/documentation/javascript/examples/markerclusterer/markerclusterer.js

[danielemoraschi]

How this will work with the generated menu of locations?