Fixed erroneous attempt to use excanvas.js in IE9
Fixed erroneous attempt to use excanvas.js in IE9

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