(libT) #1220 'change file and folder names': add a unit test for the r13837 bugfix of .part files + tr_torrentRenamePath()

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13848 f4695dd4-2c0a-0410-b89c-da849a56a58e
(qt) #1220: 'change file and folder names': fix Qt renaming issue reported by taem in https://trac.transmissionbt.com/ticket/1220#comment:97

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13849 f4695dd4-2c0a-0410-b89c-da849a56a58e
add temporary verbosity to the rename-test to coax log info out of Jenkins

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13850 f4695dd4-2c0a-0410-b89c-da849a56a58e
continuation of previous commit to find out why Jenkins doesn't like the new rename unit tests

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13851 f4695dd4-2c0a-0410-b89c-da849a56a58e