Arming added for quadrotor. Need to add to rover still. Battery monitoring added with auto shut-off in quadrotor controller. Finally split apo header and source files to allow faster compiling/ fix cyclic header inclusions.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1957 f9c3cf11-9bcb-44bc-f272-b75c42450872
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1935 f9c3cf11-9bcb-44bc-f272-b75c42450872