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)
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)
trailing ws
fix vertical centering of slide in ios chrome (closes #289)
disable zoom plugin while in overview mode
helper method for retrieving slide based on index (closes #293)
enable backgrounds images when printing to pdf (closes #271)