log README @ 5284:96a22141cf86 tip

age author description
Tue, 01 Feb 2011 21:40:03 -0800 Sam Lantinga Nobody is currently maintaining the QNX code, so removing it for now.
Thu, 27 Jan 2011 00:06:36 -0800 Sam Lantinga Nobody is maintaining RISC OS code, so I'm removing it for now.