Support for external markdown files, including configurable (vertical) slide separator
More/better examples in markdown demo
Slightly refactored "slidify" flow
Added isFirstSlide and isLastSlide functions
check window.ontouchstart != null (required for qtwebkit)
added isFirstSlide/isLastSlide api methods
ontouchstart null check in addEventListeners
ENH: fragment-pos attribute for ordering fragments
FIX: indent level of sort_fragments
Set PDF output to letter landscape, no margin
add configure api method for update config after initialization
prevent overview click events after calling Reveal.removeEventListeners
Update plugin/markdown/markdown.js

Use textContent instead of innerHTML to prevent encoding of certain characters in Markdown code blocks.
disabled overview clicks on slides with disabled class
remove share buttons
upgrading to grunt 0.4. resolves #349.
merge grunt update to 0.4 (#350)
fragment sorting tweaks, sort attribute is now called data-fragment-index (#342)
merge external markdown support, move example to plugin (#329)
add note about external markdown in readme (#329)