For tbres/resweb (75 nodes):

	Old time: 42 seconds.
	New time: 19 seconds.

For testbed/BigLan (600 nodes):

	Old time: 120 seconds.
	New time: 40  seconds.

So, still needs some work, but for the average case its not so bad
anymore.

I also turn on compression to level 5 by default in our sshxmlrpc.py
library, thereby overriding the user's config file for that option.