added jekyll gem and _config for generating
moved markdown files to a _posts directory
index to load pages and layout and includes for modularity
removed intro html and added markdown so it can get generated
removed diff html and moved title to includes
manual page navigation links for now
renamed setup and added manual page link at bottom
rename of setup markdown
Cleanup moving and removing unnecessary files for site generation

* removed files under _posts i shouldnt have had in first place
* removed all html files since they're rendered from markdown
* ensured no dead-ends in path through course
  * previously log just points to log for "next"
moved files into p
remove blank index
fixed links for intro to be first slide and navigation to work correctly
Merge pull request #37 from github/jekyllify

Jekyllify