Vignettes and other documentation

Vignettes from package 'lme4'

lme4::				source	R code
lme4::		PLS vs GLS for LMMs		source	R code
lme4::		Computational Methods		source	R code

Other files in the doc directory

	Doxyfile
	PLSvGLS.pdf
	Theory.pdf
	lme4-extras.pdf
	profiling.txt