Added parallax scrolling background
Fix: no parallax scrolling in FF

Fixed problem with parallax background  not working under FF
Add option to Gruntfile.js to specify server port
make sure remotes works without notes plugin being loaded #607
Merge branch 'patch-1' of https://github.com/mrshu/reveal.js
add note about port #608
prevent unintended slide change event

This prevents the upcoming slide on the notes page from triggering
slidechanged events.  I believe this fixes issue 578, as well.
update comment
Merge branch 'master' of https://github.com/drhuettl/reveal.js
merge parallax into dev, remove default image #595
update code style to match rest of reveal.js, disable parallax by default #595
move parallax code to separate method #595
update the parallax background when the window resizes #595
use 'url()'-free path when specifying parallax image, refactor so that parallax is applied to background class, remove unused attributes #595
Merge remote-tracking branch 'remotes/hakimel-original/dev'

Conflicts:
	Gruntfile.js
	index.html
	js/reveal.js
	js/reveal.min.js
	plugin/multiplex/master.js
	plugin/notes/notes.html
whitespace police raid
provisional fix/mix of bugfixes - this fixes the double 'selected' panels in the [ESC] overview mode - though I seem to recall that this basic fix did produce trouble in another presentation/layout scenario.
don't care about the minified versions -- those lag behind several revisions often enough. Point all tests and examples at the raw files instead.