On window resizing, Galleria causes the browser to scroll to the top of page

[john-bai]

Tested and reproduced in 3/3 browser tests on Mac 10.6.8:
Safari 5.1.9
Chrome 30.0.1599.14 beta
Firefox 23.0.1

Steps to reproduce:

1. Go to any theme demo page (example: http://galleria.io/themes/classic/)
2. Resize window height to add scrollbar to window.
3. Scroll down to bottom of page.
4. Resize window width.

Expected:

Browser window's scroll position remains unchanged.

Actual:

Browser window's scroll position changes to 0. User sees top of page.

[toalex77]

I found taht this behaviour (which is still present) turns out when the "responsive" option is turned on, and become very annoying on mobile devices (specially in Google Chrome, where scrolling the page causes the url bar to appear and disappear, and this generate a lot of window.resize events).
I've worked around it by replacing the line 4731 ($container[ m ]( 'auto' );) in the function Galleria.prototype.resize, with these:

if( m == 'width' )$container[ m ]( $container.parent().innerWidth() );
if( m == 'height' )$container[ m ]( $container.parent().innerHeight() );

But I think that a better fix is needed.