rnw inline code chunk
rhtml code chunks don't work with rhtml comments
roxygen syntax highlighting (Issue#27)
initial support for spin (Issue#31)
xelatex typo
further roxygen syntax highlighting (Issue#27)
brew syntax highlighting
rtex code chunk highlighting
rest syntax highlighting
rest syntax highlighting
documentation update
expanding ritesink (Issue#26)
added tk output to ritesink (Issue#26)
updated ritesink documentation (Issue#26)