From: "Mike Gorchak"
Subject: Patches for tests and QNX6

1) graywin - added support for the gray gradient in the 15/16 bpp modes. Added SDL_VIDEOEXPOSE event handling.
2) testalpha - added support for the gray gradient in the 15/16 bpp modes.
3) testbitmap - added support for the gray gradient in the 8/15/16 bpp modes.

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extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40692