More ways of specifying annotator context

[logological]

Originally reported on Google Code with ID 27

The various context-based WSDAnnotators allow the user to specify a particular UIMA
annotation type as the context.  There should be support for other ways of specifying
the context (e.g., a window of n annotations of a certain type before and after the
subject of disambiguation).

Reported by [email protected] on 2013-08-02 14:22:49