Removed unnecessary complexity: double_t should always be available,
as already assumed in redfit.c


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@847 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
redfit: Avoid using the long double type in some cases, hopefully
speeding up slow computation times on some systems
(r-patched-solaris-sparc test results on CRAN...)


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@848 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Restore .Random.seed at the end of the example. After running
example(redfit), the random state is as if one random number had been
used. Avoids always returning to the same state after example(redfit).


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@849 edb9625f-4e0d-4859-8d74-9fd3b1da38cb