More documentation.
More documentation.

- docs for the 'help' command
- make 'help' display a generic help text when not provided any parameters
- docs for the 'list' command

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