This Verity component allows a Harvest broker to use the indexing
engine from Verity's Topic Developers Kit.  A license from Verity
is required in order to use this component.  

From the v1.3 Release Notes:

    Verity/Topic
    ------------

	This release includes support for using Verity Inc.'s Topic
	indexing engine with the broker.  In order to use Topic with
	Harvest, a license must be purchased from Verity (see
	http://www.verity.com/).

	At this point, Harvest does not make use of all features in 
	the Topic engine.  However, does include a number of features
	that make it attractive:

		* Background indexing: the broker will continue to 
		  service requests as new objects are added to the
		  database.

		* Matched lines (or Highlights): lines containing query
		  terms are displayed with the result set.

		* Result set ranking

		* Flexible query operations such as proximity, stemming,
		  and thesaurus.