Revert "disable hledger-iadd for hledger-lib-1.9 (#3473)"
Revert "disable hledger-iadd for hledger-lib-1.9 (#3473)"

should be fixed in 1.3.3

This reverts commit c5e4015a4b762ef8222bc5233bcb44f3f1b3d9a1.

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