Mon Oct  4 21:09:20 1999  Tim Janik  <timj@gtk.org>

        * plug-ins/common/csource.c: minor cleanups. fixed up alpha channel
        elimination for RGBA_IMAGE && !config->alpha configuration.
        added option to save data with 1Byte Run Length Encoding, in this
        case the outputted source contains a macro (15 lines), implementing
        an RLE decoder for RGB or RGBA buffers.
        RLE gains us a size decrease of ca. 50% for average images, while
        decoding speed amounts to a few invokations of memcpy().