event.getScrollY inconsistency between JS binding (on win32) and html5 version

[TravisGesslein]

In the HTML5 version, tested in Google Chrome, scrolling downwards seems to return some negative value, which also is scaled by some amount that probably depends on the scroll speed the user has set in their mouse driver software.

In the JS-binding version (tested on win32), scrolling downwards not only returns a positive value, but the value is also always -1 or +1, and isn't scaled appropriately.

Both version should return the same values on all platforms. First, scrolling downwards should give either a positive or negative number on all platforms. Second, the actual amount should be the same, e.g. by letting the html5 version return -1 and +1 as well.

[pandamicro]

Good point, thank you for reporting this, we will looking into it.