Revert "Temporary block katydid/katydid-haskell#7"
Revert "Temporary block katydid/katydid-haskell#7"

This reverts commit 38df4442e32f2042e50f99d52c164668c3d26a6c.

mrkkrp/stackage,michalkonecny/stackage,Daniel-Diaz/stackage,fpco/stackage,wereHamster/stackage,athanclark/stackage,ethercrow/stackage,simonmichael/stackage,lwm/stackage,mstksg/stackage,int-index/stackage,mgajda/stackage,soenkehahn/stackage,peti/stackage,garetxe/stackage,stackbuilders/stackage,phaazon/stackage,jonschoning/stackage,clinty/stackage,massysett/stackage,fimad/stackage,iand675/stackage,asr/stackage,creichert/stackage,k0ral/stackage,Shimuuar/stackage,spencerjanssen/stackage