Merge pull request #5 from matthewlein/master

contenteditable and arrow keys
slide with code is now editable, escaped unicode arrows
comments & typo correction
replaced google logo with a unicorn
added optional presentation progress bar
hide progress by default
updated readme
Added examples
progress bar is now a div and uses the same transition + easing as slides (fixes #6)
added '-ms' prefixed properties
only apply background gradient to <html>
slides three or more steps away from current are now hidden
fallback on 2d transform transitions via feature detect
added experimental overview mode (press SPACE)
skip fragments when in overview
fix clicks on vertical slides in overview
fix padding and duplicate background on vertical slides in overview
added new transitions (box/page) and a ui theme (neon)
readme history update
packed v1.1, upgraded to 1.2