update Mac code for logging changes in r13868

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13870 f4695dd4-2c0a-0410-b89c-da849a56a58e
don't access NSArrays using subscripts, since that requires the modern runtime

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13871 f4695dd4-2c0a-0410-b89c-da849a56a58e
remove two dictionary subscripts

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13872 f4695dd4-2c0a-0410-b89c-da849a56a58e
remove another subscript usage

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13873 f4695dd4-2c0a-0410-b89c-da849a56a58e
remove another subscript usage

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13874 f4695dd4-2c0a-0410-b89c-da849a56a58e
explicitly synthesize variables in FileRenameSheetController

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@13875 f4695dd4-2c0a-0410-b89c-da849a56a58e