Update changes
Fix broken link to class reference
Add missing change coming from #382
Merge branch 'fix-changes'
Move curlys up to the right side
Fix some highlight clobbering in arta
Remove unneeded use of '*' for comments
One rule per line style for all css

It's better to rely on the compression of css to save space. This is also to
keep the css files similar in style.
Add missing semicolons

Compression also handles removing the last semicolon in a css style block.
It is also easier to add and remove rules if needed.
Change to lowercase hex numbers
Merge branch 'styles/fix-highlighting'

* Fixes some mangled highlighting main from arta style
* A few style changes to css to further complete a consistent style in the
  css files
added "current" to literals
Merge pull request #431 from idleberg/master

Added "current" to literals
Add built_in functions for R language

Add some keywords from (highlight)[http://cran.r-project.org/web/packages/highlight/index.html] R package. It's the most complete list.
Revert some bits
Merge pull request #432 from unikum/patch-1

Add built_in functions for R language