Update build script to point to commercialhaskell
Update build script to point to commercialhaskell

soenkehahn/stackage,peti/stackage,fimad/stackage,iand675/stackage,asr/stackage,simonmichael/stackage,clinty/stackage,massysett/stackage,mstksg/stackage,int-index/stackage,mrkkrp/stackage,mgajda/stackage,jonschoning/stackage,stackbuilders/stackage,spencerjanssen/stackage,michalkonecny/stackage,wereHamster/stackage,athanclark/stackage,Shimuuar/stackage,creichert/stackage,ethercrow/stackage,fpco/stackage,Daniel-Diaz/stackage