Fix example. It was relying on data set in a separate example.
Shorten over-long lines in examples.
Use full argument name in function call (R CMD check).
TO DO == remove Fortran write/print/stop.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/gradientforest@31 edb9625f-4e0d-4859-8d74-9fd3b1da38cb