eliminating two unneeded returns
adding event.preventDefault() to avoid scrolling and zooming as per Apple's notes...

… in here
https://developer.apple.com/library/ios/documentation/AppleApplications/
Reference/SafariWebContent/HandlingEvents/HandlingEvents.html
commenting-out a catch of the scrolling event that I put in place for iOS, shouldn't be needed noe.
rebuild and docs
Merge pull request #124 from davidedc/master

aligning gh-pages with master