1) The SVN seems out of date or unused. Is there a development branch we can sync with? svn checkout http://ardupilot.googlecode.com/svn/trunk/ ardupilot-read-only 2) Whats the procedure for patches? Should they be emailed or posted? Diffs? 3) Serial ports on Arduino 0017 on Ubuntu Linux seem unstable, is the windows version stable? 4) I am working on building a hardware in the loop test syste…