Update interface to call new stopword retrieve functionality
Update interface to call new stopword retrieve functionality

The interface was updated to retrieve the user's stopwords using the
new stopword functionality.

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