silence a small handful of minor gcc compiler warnings in libtransmission

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14167 f4695dd4-2c0a-0410-b89c-da849a56a58e
bump trunk to 2.82+

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14168 f4695dd4-2c0a-0410-b89c-da849a56a58e