math/R-cran-car: update to 2.1-3.

• Corrected documentation for mcPlots
• added id.location argument to showLabels to vary location of labels
• added fix for compatiblity with Rcmdr with missing data in several plotting functions.
• deltaMethod() now reports confidence intervals.
• print.summary.Anova.mlm() has new SSP and SSPE arguments to determine whether the corresponding matrices are printed (suggestion of Michael Friendly).
• summary() and print() methods for Anova.mlm() can now report univariate ANOVAs (suggestion and some code by Michael Friendly).
• added "value" and "vcov" attributes to objects returned by linearHypothesis() (after suggestions by Liviu Andronic and Steven Yen).
• compareCoefs() now checks classes of models.
• small fixes/changes.