Removing global flag for replacing whitespaces
Add generated css and js to gitignore

I found it nice to ignore these files, they are automatically generated anyway (i.e. reveal.min.js always has the date of minify-ing, which I don't want to commit all the time). Should just track the source unless there is a good reason to hand-curate these versions.
Mark xhr.status=0 as successful
Mark xhr.status=0 as successful
Merge pull request #682 from tentacode/patch-1

Indentation issue when using code in a markdown slide
next release will be 3.0.0
Merge branch 'patch-1' of https://github.com/jamestwebber/reveal.js into dev
stop tracking minified files #783
Merge branch 'xhr-local' of https://github.com/malyw/reveal.js into dev
code format tweak
better transition names, fix background images in vertical slides
make all slides 'present' while printing
add support for custom keyboard availability condition
fix css syntax error
postmessage plugin is now part of reveal.js core
bubble all reveal.js events to parent window through postMessage
add config option for postMessage features
split postmessage config into two options
notes plugin now operates entirely through window.postMessage, adding support for file protocol
update style of notes plugin to match Slides