Update CITATION

Adding publisher's address to book citation.
Create bw.css

Adding black & white style file. Comments are italics and function names bold.
Alignment for HTML output with kable

https://github.com/yihui/knitr/issues/656
Merge pull request #683 from larmarange/issue656

Alignment for HTML output with kable

closes #656
tweaking after #683; kable() supports alignment in HTML tables now
Adding more variations of the  B & W theme.
Changing to address to BOCO'
Changing to address to BOCA'
Merge branch 'master' of github.com:csgillespie/knitr
Merge pull request #679 from csgillespie/master

Update CITATION
trivial typo
Merge pull request #686 from krlmlr/patch-1

trivial typo
@export does what @S3method does now, although it is a little bit confusing
no address in the text version; let bibtex handle the address instead
roxygenize
there is no install-no-vignettes
I do not understand the error from Travis CI (example 051); there should not be an existing cache directory, but anyway