be a little less aggressive in underlayCallback changes
be a little less aggressive in underlayCallback changes

vhotspur/dygraphs,davidmsibley/dygraphs,Akiyah/dygraphs,Yong-Lee/dygraphs,reinert/dygraphs,Akiyah/dygraphs,mariolll/dygraphs,pshevtsov/dygraphs,danvk/dygraphs,timeu/dygraphs,davidmsibley/dygraphs,klausw/dygraphs,cavorite/dygraphs,danvk/dygraphs,danvk/dygraphs,timeu/dygraphs,panuhorsmalahti/dygraphs,danvk/dygraphs,pshevtsov/dygraphs,jmptrader/dygraphs,petechap/dygraphs,reinert/dygraphs,davidmsibley/dygraphs,Akiyah/dygraphs,socib/dygraphs,pshevtsov/dygraphs,kbaggott/dygraphs,mcanthony/dygraphs,Akiyah/dygraphs,vhotspur/dygraphs,jmptrader/dygraphs,sanderpick/dygraphs,socib/dygraphs,witsa/dygraphs,vhotspur/dygraphs,klausw/dygraphs,reinert/dygraphs,kbaggott/dygraphs,davidmsibley/dygraphs,Yong-Lee/dygraphs,witsa/dygraphs,mantyr/dygraphs,grantadesign/dygraphs,cavorite/dygraphs,mantyr/dygraphs,pshevtsov/dygraphs,mariolll/dygraphs,mcanthony/dygraphs,petechap/dygraphs,witsa/dygraphs,Akiyah/dygraphs,petechap/dygraphs,sanderpick/dygraphs,Yong-Lee/dygraphs,reinert/dygraphs,mariolll/dygraphs,grantadesign/dygraphs,timeu/dygraphs,kbaggott/dygraphs,reinert/dygraphs,mariolll/dygraphs,petechap/dygraphs,kbaggott/dygraphs,panuhorsmalahti/dygraphs,socib/dygraphs,cavorite/dygraphs,jmptrader/dygraphs,vhotspur/dygraphs,sanderpick/dygraphs,socib/dygraphs,grantadesign/dygraphs,panuhorsmalahti/dygraphs,klausw/dygraphs,klausw/dygraphs,mariolll/dygraphs,Yong-Lee/dygraphs,mantyr/dygraphs,grantadesign/dygraphs,mantyr/dygraphs,witsa/dygraphs,sanderpick/dygraphs,jmptrader/dygraphs,mcanthony/dygraphs,witsa/dygraphs,panuhorsmalahti/dygraphs,mantyr/dygraphs,timeu/dygraphs,panuhorsmalahti/dygraphs,kbaggott/dygraphs,jmptrader/dygraphs,mcanthony/dygraphs,mcanthony/dygraphs,pshevtsov/dygraphs,petechap/dygraphs,Yong-Lee/dygraphs,vhotspur/dygraphs,klausw/dygraphs,davidmsibley/dygraphs,grantadesign/dygraphs,danvk/dygraphs,timeu/dygraphs,cavorite/dygraphs