object put: Allow empty objects

[magik6k]

Fixes #1331

[Stebalien]

See: 4430731. I ran into trouble detecting mis-encoded XML objects.

[magik6k]

If we really want to be correct on how we parse xml, we'd probably want to use xml.Decoder directly, but I'm not sure if it's worth the time in this case

[Stebalien]

If we really want to be correct on how we parse xml, we'd probably want to use xml.Decoder directly, but I'm not sure if it's worth the time in this case

Probably not. Want to just drop that test? However, I would backport my JSON error checking into this patch.

[magik6k]

(done)