Update interface to call new stopword delete functionality
Update interface to call new stopword delete functionality

The interface was updated to delete stopwords using the new delete
functionality.

UUDigitalHumanitieslab/texcavator,UUDigitalHumanitieslab/texcavator,msassmann/texcavator,msassmann/texcavator,msassmann/texcavator,UUDigitalHumanitieslab/texcavator,msassmann/texcavator