[separate-triple-dash] Added a failing spec that describes issue #16
[separate-triple-dash] Corrected typos within feature
[separate-triple-dash] Added failing feature that describes issue #16
[separate-triple-dash] Started veritcally separate ---

There's now a pre-processing step when running markdown, and this
insures that the symbol reveal-ck uses for separating slides (---) is
vertically separated from other content.

In particular, this vertical separation insures that the --- is not
misinterpreted as a "setext" style heading.
Fixed issue #16

Merge branch 'separate-triple-dash' into upcoming

* separate-triple-dash:
  [separate-triple-dash] Started veritcally separate ---
  [separate-triple-dash] Added failing feature that describes issue #16
  [separate-triple-dash] Corrected typos within feature
  [separate-triple-dash] Added a failing spec that describes issue #16