support both :length and :max for summary length
support both :length and :max for summary length

mclaughj/toto-tags,nviarnes/customized_toto,wulftone/toto,stevepaulo/toto,nviarnes/custom_toto,mattvanhorn/toto,rschmukler/Glinda,cloudhead/toto,mattvanhorn/toto,ixti/toto,sbsurf/toto,stevepaulo/toto,wulftone/toto,D-Roch/Blog-toto,blanchma/toto-extended