git-svn-id: http://svn.vuze.com/public/client/trunk@40672 c2c1b7af-1477-405b-86ee-8aefd1fc4dd2
start of proper support for disable up/down

git-svn-id: http://svn.vuze.com/public/client/trunk@40673 c2c1b7af-1477-405b-86ee-8aefd1fc4dd2