Scrollbar not showing in RTL pages

[jonagoldman]

When I have a 'right to left' page (direction:rtl) the scrollbar inside 'themodal-overlay' is hidden (because of the -17px fix). In order to fix this I added 'direction:ltr' to the .themodal-overlay css class, and then returned the inner content to the correct rtl by doing 'direction:rtl' to the .modal css class.