Modified example archive trimmer to omit certain clips.
Modified example archive trimmer to omit certain clips.

The trimmer now omits tone and unclassified clips from the example
archive, and deletes the tone clip class from the database.
HaroldMills/Vesper,HaroldMills/Vesper,HaroldMills/Vesper,HaroldMills/Vesper,HaroldMills/Vesper