(#460) ensure playbook task results are always JSON safe
(#460) ensure playbook task results are always JSON safe

As the playbook task results have to go into Puppet we really cant
have weird data types in there, basically JSON safe is the order of
the day

In reality thats great and what we want anyway in general, this forces
that, not really a concern since the choria plugins were pulled into
choria project and fixed but its a safe thing to do

choria-io/mcollective-choria