Thanks to Ben Pfaff who wrote the patch

Now, the majority the install can be done with one line, but the other
to each part of the install is still available.

Also fix a few bugs and add Wireshark coloring rules.

We should check NOXController and RemoteController to make sure that
they are not broken, but I cannot do this at the moment.

Also rearranged parameters in link command to

mininet> link s1 h2 up

To resemble ifconfig a bit more.

It should also probably be renamed to something like:
configLinks(src, dst, status).

Moved monitor() and readline() into net.py and node.py respectively,
which will hopefully be useful for monitoring large sets of hosts,
as is done in udpbwtest.py.

Changed iperf to use interactive command infrastructure (such as it
is), which may make it more reliable. Hopefully it's a bit clearer
as well, although it is slightly more complicated.

It seems easier to rely on node.waiting for the moment.

Before this commit, you'd have to manually insert the kernel module for
OVS or OF kernel modules, and you couldn't run one regression test with
all 3.

Now, these are kmod insert/remove is handled automatically.