Playback a map over a time series.

Incorporate a manual slider & a 'Play' button.

Needs support in !OpenLayers:
 * http://trac.openlayers.org/ticket/1395

TimedPointTrack Addin is now avaialble:
 * http://trac.osgeo.org/openlayers/wiki/Addins/TimedPointTrack

----
[wiki:BluePrintGeographicInformationSystems GIS BluePrints]