sync mainline NEWS and version with 2.7x branch

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14032 f4695dd4-2c0a-0410-b89c-da849a56a58e
(qt) freespace fixes by rb07 from https://trac.transmissionbt.com/ticket/4076#comment:40

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14033 f4695dd4-2c0a-0410-b89c-da849a56a58e