Added tests for explicit y axis range in callback.
Added tests for explicit y axis range in callback.

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