Return more error information back to the user
Return more error information back to the user

Closes #2190

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

pcdummy/lxd,atxwebs/lxd,techtonik/lxd,erikmack/lxd,hallyn/lxd,hallyn/lxd,ollie314/lxd,hallyn/lxd,jsavikko/lxd,akshaykarle/lxd,erikmack/lxd,chrisglass/lxd,lxc/lxd,lxc/lxd,atxwebs/lxd,stgraber/lxd,hallyn/lxd,Skarlso/lxd,jsavikko/lxd,akshaykarle/lxd,chrisglass/lxd,ollie314/lxd,lxc/lxd,stgraber/lxd,hallyn/lxd,akshaykarle/lxd,stgraber/lxd,stgraber/lxd,ollie314/lxd,hallyn/lxd,mjeanson/lxd,mjeanson/lxd,lxc/lxd,atxwebs/lxd,georghopp/lxd,Skarlso/lxd,lxc/lxd,lxc/lxd,atxwebs/lxd,erikmack/lxd,pcdummy/lxd,stgraber/lxd,georghopp/lxd,pcdummy/lxd,stgraber/lxd,techtonik/lxd,chrisglass/lxd,techtonik/lxd,jsavikko/lxd,georghopp/lxd,lxc/lxd,mjeanson/lxd,Skarlso/lxd,stgraber/lxd,Skarlso/lxd