2000-04-10  * added experminental anti-artefacts feature
              * release 0.15

  2000-04-08  * fixed a minor bug in the aa implementation
                including the aa-zoom implementation and
                even zoom.
              * 0.14

  2000-03-31  * changed renderer memory management to speed
                up aa and zoom rendering.
              * extended the README.
              * release 0.13

  2000-02-16  * fixed aa rounding problem in the two aa
                rendering functions where the mem' is
                flushed back.
              * setting up 0.12

  2000-02-11  * added eye perspective argument -e
              * releasing version 0.11

  2000-02-08  * releasing version 0.10 into the playground
                of the linux community. :)