Changes in pixmap version 0.4-9
o Fixed a minor glitch in write.pnm.
Changes in pixmap version 0.4-8
o Fixed a bug that prevented plotting images with only 1 row (bug
report by Robert Esswein).
Changes in pixmap version 0.4-7
o Use LazyLoad instead of SaveImage.
Changes in pixmap version 0.4-6
o Modified one of the regression tests for changes in R 2.4:
terrain.colors() now return transparency information
-> do not use it in example.
Changes in pixmap version 0.4-5
o standardized license filed in DESCRIPTION file.
