update id after move

[dbu]

in phpcr, the document/node path changes when moving. we should allow the move response to update the id of the moved node.

btw, error handling is bad, there is no message when a move failed, and the status code from the server is even a 200 OK.

[dbu]

i propose we drop this from 1.0 and delay to the new tree bundle dan is cooking up. i remove the 1.0 milestone here.

[lsmith77]

fine for me.