Bug: Fix browser compatibility issues

[alfongj]

By now, the following issues have been found:

1. In IE 9, when expanding the interface, it occupies slightly more than 100% in height, showing therefore a vertical scrollbar, which isn't nice. It works OK for every other browser I've tried, including IE 8, so it might be a IE 9 bug.
2. In Android browser (Gingerbread), the PopUp output doesn't work, they load blank for a reason I haven't found yet.
3. In Firefox and Chrome, the Scrolling with the mouse wheel seems not to work
4. Shortcuts not working in some browsers: Ctrl L in IE9

[alfongj]

UPDATE: The cause of the third issue is chrome not passing the mouseScroll event to the flash container if it is has wmode activated to transparent, and something over it. Therefore, to solve it, wmode: transparent must be removed, and, as the 'Expand' button would disappear if doing so, it must be integrated into the flash container.

I open Issue #40 for such purpose.

[alfongj]

UPDATE: in 72b2c41

1. and 2) solved and closed