adamzap/landslide — pull request #153 by idning (2013-11-03 14:13:16+00:00)
Title: auto add HR for rst source

I found that in `samples/example3/slides.rst`, there is one `hr` before every `header`,

so we can add it automatic, which make the source file much easy to read

see `samples/example3/slides_without_hr.rst` as a example, it Compatible the source with `hr`

Middle Title Slide
==================

Here we Go Again
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will change to

----

Middle Title Slide
==================

----

Here we Go Again
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