Add on(...) support for JoinQueryYield8 and JoinQueryYield9
Add on(...) support for JoinQueryYield8 and JoinQueryYield9

broadinstitute/Squeryl,wukaikailive/squeryl,broadinstitute/Squeryl,Krasnyanskiy/squeryl,rreckel/Squeryl,ccap/Squeryl,kanischev/Squeryl,rreckel/Squeryl,xuwei-k/Squeryl,Krasnyanskiy/squeryl,squeryl/squeryl,wukaikailive/squeryl