Update scalatest base to use the new netty builder.
Update scalatest base to use the new netty builder.

jarin/unfiltered,jarin/unfiltered,unfiltered/unfiltered,unfiltered/unfiltered,mismatch/unfiltered,xuwei-k/unfiltered,realestate-com-au/unfiltered,omarkilani/unfiltered,mismatch/unfiltered,beni55/unfiltered,realestate-com-au/unfiltered,peel/unfiltered,hamnis/unfiltered,omarkilani/unfiltered,benhutchison/unfiltered,xuwei-k/unfiltered,beni55/unfiltered,peel/unfiltered,hamnis/unfiltered