Australia

Also in the article:

Britain has angered Ecuador by suggesting it could invoke a domestic law allowing it to breach the usual rules and go in to arrest Mr Assange.

This would challenge a fundamental principle of the diplomatic system, and the threat has left Britain in unchartered legal waters.

I wouldn't trust the Australian consul. I haven't heard a word from the Australian government expressing their objection to Britain's threats to the Ecuadorian embassy (I would be interested if someone has heard of such). If Britain stretches the normal rules regarding embassies they will be putting their own embassies in danger, and probably ours as well. I don't think they will take over the embassy, but even the threat to do so puts into question the security of any country's embassy.

I see nothing strange with Assange rejecting their offer of help.