(libT) remove code to migrate config files from pre-2008

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14022 f4695dd4-2c0a-0410-b89c-da849a56a58e
(libT) don't start the web thread until we have a task to feed to curl

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14023 f4695dd4-2c0a-0410-b89c-da849a56a58e