No longer stemming all upper-case tokens.  Fixes test ftmatchoptions-q6.
No longer stemming all upper-case tokens.  Fixes test ftmatchoptions-q6.

cezarfx/zorba,cezarfx/zorba,bgarrels/zorba,bgarrels/zorba,28msec/zorba,28msec/zorba,bgarrels/zorba,28msec/zorba,cezarfx/zorba,cezarfx/zorba,28msec/zorba,28msec/zorba,28msec/zorba,bgarrels/zorba,bgarrels/zorba,cezarfx/zorba,28msec/zorba,cezarfx/zorba,cezarfx/zorba,cezarfx/zorba,bgarrels/zorba,28msec/zorba,bgarrels/zorba,bgarrels/zorba,cezarfx/zorba,cezarfx/zorba,28msec/zorba