1997-12-20  Marcus G. Daniels  <mgd@wijiji.santafe.edu>

	* PplObserverSwarm.m ([PplObserverSwarm -buildActions]): Send
	doTkEvents to actionCache, not controlPanel.

	* VNneighbor.m ([VNneighbor -next:]): Set a default nextNeighbor
	to avoid warning.
	([VNneighbor -previous:]): Set a default previousNeighbor to avoid
	warning.

	* PplObserverSwarm.m ([PplObserverSwarm +createBegin:]): Include
	simtools/ActiveGraph.h.

	* PplModelSwarm.m ([PplModelSwarm +createBegin:]): Use id <ProbeMap>
	not ProbeMap *.
	Reformatting throughout.

	* Person.m ([Person -getName]): Constify return.
	([Person -stayOrGo]): Constify return.

	* VNneighbor.h:  Switch from swarmobject.h to objectbase.h.

	* Agent2d.h: Likewise.

	* PplObserverSwarm.h: Likewise.
