Documentation: Update Faucet tutorial.

Documentation: Update Faucet tutorial.

Updates Faucet tutorial to work with newer versions than 1.6.7:

 * Tutorial now shows how to check out latest tag from Faucet's git.

 * Set minimum_ip_size_check flag to False so that the
   payloadless packets generated by ofproto/trace aren't dropped by Faucet.

 * Update Faucet ACL syntax

 * Update output from commands/log files to reflect changes in the
   Faucet pipeline and to use OpenFlow 1.3 format.

Signed-off-by: Brad Cowie <brad@wand.net.nz>
Signed-off-by: Ben Pfaff <blp@ovn.org>