Adding asyncoro.py from asyncoro project for convenience.
Increase timeouts.

Increase timeouts for connections so that even if efficient polling
mechanisms are not used, the client's get the job replies.
Don't accept class methods for 'compute'.

Don't accept class methods as compute methods as these can't be executed
remotely (without recreating the class on the remote node, but this can be
safely/correctly done only by the user).
Fixed 'resubmit' option.

Changed 'resubmit' option to 'reentrant' as it should now be.