Only allowing 'unpause' keyboard events while paused
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)
remove experimental tileflip transition, reduce max size of media content to 95% to account for slide padding
adjust copyright years
find correct path to open html file from the notes.js path
merge in notes improvement
stop auto-slide on pause and overview (closes #320)
add api methods for check if overview is active or presentation is paused
scale presentations on ipad instead of zoom
Added isFirstSlide and isLastSlide functions
check window.ontouchstart != null (required for qtwebkit)
Merge pull request #337 from jjallaire/ontouchstart-nullcheck

check window.ontouchstart != null (required for qtwebkit)