Merge pull request #34 from itsdrewmiller/master

pull request for the fix provided in issue 16, for both vertical and horizontal scrolling
use scrollHeight & scrollWidth to avoid getting the wrong size of the content
Merge pull request #36 from zenozeng/master

Use prop('scrollWidth') and prop('scrollHeight') instead of outerWidth() and outerHeight() to get the content size.
Remove $content.

It's not used anymore.
Modify README.md.

The requirement that force just one content element is gone.
JSHint the code.

Missing space.
Fix the wrong indents in example pages.
Inhance the scroll logic with mobile touches.

The scroll works only when the user touch and scroll the wrapper div
with just one touch. By this patch, the zoom function will not be
prevented by scrolling content.
Merge pull request #2 from noraesae/master

merge noraesae