Fix for Sequel.open, Dataset#<<.
Fix for Sequel.open, Dataset#<<.

t-morgan/sequel,Marketcircle/sequel,petergunz/sequel,dennis-d/custom_sequel,gferguson-gd/sequel,pfarrell/sequel,dennis-d/custom_sequel,davidbegin/sequel,nicohvi/sequel,gferguson-gd/sequel,seeARMS/sequel,uhoh-itsmaciek/sequel,beni55/sequel,knut2/sequel,knut2/sequel,mpalmer/sequel,mpalmer/sequel,t-morgan/sequel,davidbegin/sequel,yazshel/sequel,bigfix/sequel,yazshel/sequel,freshpay/sequel,reubano/sequel,reubano/sequel,chef/sequel,nicohvi/sequel,freshpay/sequel,offshore-safety/sequel,nju520/sequel,beni55/sequel,offshore-safety/sequel,nju520/sequel,uhoh-itsmaciek/sequel,seeARMS/sequel,offshore-safety/sequel,pfarrell/sequel,tmm1/sequel