(qt) in the statusbar, use the same upload/download symbols as in the torrent list
(libT) #5276 'regression in nightly: assert (tr_sessionIsLocked (session))': add unit test (currently failing) to reproduce this error
(libT) #5276 'regression in nightly: assert (tr_sessionIsLocked (session))': fix the bug; tests now pass again
(qt) #5277 'queue operation regression in nightlies': fixed.