rest-api: update to clarify access/input/output
rest-api: update to clarify access/input/output

Signed-off-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>

mjeanson/lxd,Malizor/lxd,Malizor/lxd,rcj4747/lxd,basvanbeek/lxd,erikmack/lxd,georghopp/lxd,hallyn/lxd,georghopp/lxd,tych0/lxd,hallyn/lxd,pcdummy/lxd,jumpstarter-io/lxd,ericsnowcurrently/lxd,ericsnowcurrently/lxd,lxc/lxd,chrisglass/lxd,dvbportal/osx-lxd,pcdummy/lxd,smoser/lxd,smoser/lxd,achanda/lxd,techtonik/lxd,hallyn/lxd,jensg-st/lxd,techtonik/lxd,rrva/lxd,akshaykarle/lxd,lxc/lxd,hallyn/lxd,Malizor/lxd,tych0/lxd,mikemccracken/lxd,atxwebs/lxd,stgraber/lxd,lxc/lxd,achanda/lxd,mikemccracken/lxd,lxc/lxd,stgraber/lxd,jensg-st/lxd,yura-pakhuchiy/lxd,dustinkirkland/lxd,benaryorg/lxd,achanda/lxd,pcdummy/lxd,smoser/lxd,jsavikko/lxd,ollie314/lxd,Skarlso/lxd,beni55/lxd,ericsnowcurrently/lxd,mjeanson/lxd,chrisglass/lxd,yura-pakhuchiy/lxd,tych0/lxd,ollie314/lxd,erikmack/lxd,sl1pm4t/lxd,yura-pakhuchiy/lxd,stgraber/lxd,atxwebs/lxd,beni55/lxd,dvbportal/osx-lxd,Skarlso/lxd,erikmack/lxd,rcj4747/lxd,beni55/lxd,rrva/lxd,atxwebs/lxd,Skarlso/lxd,stgraber/lxd,atxwebs/lxd,stgraber/lxd,dustinkirkland/lxd,chrisglass/lxd,hallyn/lxd,georghopp/lxd,hallyn/lxd,ollie314/lxd,jsavikko/lxd,benaryorg/lxd,lxc/lxd,jumpstarter-io/lxd,Skarlso/lxd,dvbportal/osx-lxd,jsavikko/lxd,stgraber/lxd,rrva/lxd,mjeanson/lxd,rcj4747/lxd,akshaykarle/lxd,sl1pm4t/lxd,benaryorg/lxd,basvanbeek/lxd,stgraber/lxd,mikemccracken/lxd,techtonik/lxd,basvanbeek/lxd,dustinkirkland/lxd,jensg-st/lxd,lxc/lxd,jumpstarter-io/lxd,lxc/lxd,akshaykarle/lxd,sl1pm4t/lxd