Rest of TODO migrated to tickets.
Rest of TODO migrated to tickets.

akaariai/fabric,askulkarni2/fabric,qinrong/fabric,SamuelMarks/fabric,tolbkni/fabric,fernandezcuesta/fabric,mathiasertl/fabric,tekapo/fabric,jaraco/fabric,cmattoon/fabric,pashinin/fabric,ericholscher/fabric,opavader/fabric,ploxiln/fabric,itoed/fabric,amaniak/fabric,TarasRudnyk/fabric,rbramwell/fabric,kxxoling/fabric,StackStorm/fabric,hrubi/fabric,MjAbuz/fabric,elijah513/fabric,bitmonk/fabric,pgroudas/fabric,rodrigc/fabric,simon-engledew/fabric,bitprophet/fabric,kmonsoor/fabric,xLegoz/fabric,bspink/fabric,raimon49/fabric,cgvarela/fabric,sdelements/fabric,haridsv/fabric,likesxuqiang/fabric,rane-hs/fabric-py3,felix-d/fabric,getsentry/fabric