Changes to Version 2.0-25
* Fixed df check in linearHypothesis.default() (bug report by Pierre Chausse).
* Fixed bug when vcov. argument to Anova() is a function (reported by Liviu
Andronic).
* Now export .carEnv to avoid problem with update() in Boot() (reported by
Alan T. Arnholt).
Changes to Version 2.0-24
* Fixed broken URLs.
* Changed handling of .carEnv environment.
* Moved pbkrtest, quantreg, and mgcv from Suggests: to Imports:.
Changes to Version 2.0-23
* Modified ScatterplotSmoothers to add an 'offset' to the vertical axis of
spread smooths. This are required in the marginal model plot functions.
* Fixed labels on mcPlot with overlay=FALSE
* Check for 0 residual df and 0 residual deviance (within rounding) in Anova()
and linearHypothesis() (problem reported by Jonathan Love).
* Fixed model.matrix.lme and model.matrix.gls utility functions, and hence
Anova and vif, respectively, to work with models specified with formulas
supplied as objects (after problem noted by Gang Chen).
* Added Wong data set, used in mixed-models appendix.
