Add clock and elapsed time to notes view
merge in timer in notes window, timer now stays hidden until initial time is set
updated to v2.3, initial implementation of uniformly scaled presentations (#310)
feature detect zoom with fallback on transform, allow percent units for deck width/height (#310)
fix layering issue of anchors in ff with page transition (closes #274)
Support for external markdown files, including configurable (vertical) slide separator
More/better examples in markdown demo
Slightly refactored "slidify" flow
rename padding config option to margin, better mobile support for scaled presentations (#310)
add min/max scale settings (#310)
add config vars for #310 to readme
change default maxScale to 1.0 (#310)
Only allowing 'unpause' keyboard events while paused
reduce width of single-page fallback slides
remove extra padding in stacks, add api method to retrieve curren scale (#310)
fix word breaks in headers (closes #321)
describing new presentation sizing logic in readme
Merge pull request #322 from commadelimited/deactivate-nav-during-pause

Only allow 'unpause' keyboard events while paused
code cosmetics
fix error with removal of control button and progress bar event listeners (closes #323)