Add a bunch of tests that getDirectoryContents etc work on "" and "." the same
Add a bunch of tests that getDirectoryContents etc work on "" and "." the same

ndmitchell/shake,ndmitchell/shake,ndmitchell/shake,ndmitchell/shake,nh2/shake,ndmitchell/shake,ndmitchell/shake,nh2/shake,nh2/shake,nh2/shake,nh2/shake