bump to 2.83

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14276 f4695dd4-2c0a-0410-b89c-da849a56a58e
remove tracer cerr that was accidentally committed in r14272

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14277 f4695dd4-2c0a-0410-b89c-da849a56a58e
tweak NEWS

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14278 f4695dd4-2c0a-0410-b89c-da849a56a58e