New option cov.corrfact = "tauold" in .vcov.w

This option corresponds to the old cov.corrfact = "tau" option.
The new cov.corrfact = "tau" (and "hybrid") use
    corrfact <- mean(tau^2 * r.psi^2) / mpp2 * hcorr
where as "tauold" still uses
    corrfact <- mean(r.psi^2) / mpp2 * hcorr
which does not reduce to the classical solution.

To make cov.corrfact = "tau" and "hybrid" reduce to the classical solution,
the default for cov.dfcorr was changed to 1 (= mean(w) /  mean(tau^2)). It used
to be -1 (= mean(w)).

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@565 694ef91d-65df-0310-b7bb-92e67a308ead
Updated all "*.Rout.save" files that changed with the last commit.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@566 694ef91d-65df-0310-b7bb-92e67a308ead
Using parallel package for parallel processing.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@567 694ef91d-65df-0310-b7bb-92e67a308ead
Mpsi/Mchi/Mwgt: return needs to have the same dimensions as the input.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@568 694ef91d-65df-0310-b7bb-92e67a308ead
Fixing .C calls in estimating.functions.R for vignette.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@569 694ef91d-65df-0310-b7bb-92e67a308ead
Running lmrob_simulation.Rnw after changes in .vcov.w.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@570 694ef91d-65df-0310-b7bb-92e67a308ead
Adding note about 'cov.corrfact = "tauold"' in lmrob's help file.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@571 694ef91d-65df-0310-b7bb-92e67a308ead
Adding \usepackage[noae]{Sweave}.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/robustbase@572 694ef91d-65df-0310-b7bb-92e67a308ead