enable more packages that were blocked by pandoc
enable more packages that were blocked by pandoc

simonmichael/stackage,mrkkrp/stackage,soenkehahn/stackage,stackbuilders/stackage,jonschoning/stackage,spencerjanssen/stackage,fimad/stackage,athanclark/stackage,clinty/stackage,asr/stackage,iand675/stackage,michalkonecny/stackage,fpco/stackage,Daniel-Diaz/stackage,massysett/stackage