[ANN] kramdown 0.13.6

## About kramdown

kramdown (sic, not Kramdown or KramDown, just kramdown) is a *free*
GPL-licensed [Ruby](http://www.ruby-lang.org) library for parsing a
superset of Markdown. It is completely written in Ruby, supports
standard Markdown (with some minor modifications) and various
extensions that have been made popular by the PHP Markdown Extra
package and Maruku.

Homepage for installation instructions and documentation:
   http://kramdown.rubyforge.org

## kramdown 0.13.6 released

This is just a bug fix release and it is recommened to update to this
version.

## Changes

* 2 bug fixes

  - Fixed a problem with CDATA sections appearing in MathJax output
    (reported by Xi Wang, see [github commit])
  - Fixed bug [RF#29557]: Parsing fails with lists that contain an
    empty list item (reported by Juan Romero Abelleira)

[github commit]: https://github.com/gettalong/kramdown/commit/512b00a6d050f506c43b824861f7bbf459862a19#LOR318
[RF#29557]: http://rubyforge.org/tracker/index.php?func=detail&aid=29557&group_id=7403&atid=28673