(trunk) first draft of changing the FreeSpace API to behave as https://trac.transmissionbt.com/ticket/4076#comment:25 -- libT, rpc, qt, and gtk implementations.

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13991 f4695dd4-2c0a-0410-b89c-da849a56a58e
(qt) #4076 'free space indicator': better user feedback when updating the freespace indicator in remote mode

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13992 f4695dd4-2c0a-0410-b89c-da849a56a58e
(trunk) #5244 Dutch Translation error nl.proj

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13994 f4695dd4-2c0a-0410-b89c-da849a56a58e