Fixed bug in sl.dir.getFileName with inconsistent handling of extensions, function really needs tests
Fixed bug in sl.dir.getFileName with inconsistent handling of extensions, function really needs tests

GregGoldman/matlab_standard_library,JimHokanson/matlab_standard_library,GregGoldman/matlab_standard_library,JimHokanson/matlab_standard_library,JimHokanson/matlab_standard_library,GregGoldman/matlab_standard_library,JimHokanson/matlab_standard_library,GregGoldman/matlab_standard_library,JimHokanson/matlab_standard_library,GregGoldman/matlab_standard_library