cleanups

.gitignore

Makefile.defs

public/LICENSE-text.html

public/articles/index.html

public/articles/spam.html

public/articles/spam_files/figure-html/disp6-1.png

public/authors.html

public/index.html

public/news/index.html

public/pkgdown.yml

public/reference/Oral.html

public/reference/UScounties.html

public/reference/USprecip.html

public/reference/adjacency.html

public/reference/allequal.html

public/reference/apply.html

public/reference/bandwidth.html

public/reference/bdiag.html

public/reference/chol.html

public/reference/circulant.html