[WIP] point_of_sale: trying to remove all css fx to see if it's really faster
[WIP] point_of_sale: removed js scrollbars
[MERGE] from trunk
[WIP] point_of_sale: add fastclick.js to remove tab delay on mobile devices
[WIP] point_of_sale: used one jquery event handler for all products in product list in order to accelerate rerendering
[WIP] point_of_sale: automatically scroll to bottom
[MERGE] from trunk
[WIP] point_of_sale: don't auto bottom scroll if not at bottom + saner css
[IMP] point_of_sale: hardware acceleration for scrolling
[MERGE] from trunk
[IMP] point_of_sale: removed all ids from templates and css
[IMP] point_of_sale: remove global calls to jquery
[IMP] point_of_sale: use placeholder + remove obsolete css rules
[IMP] point_of_sale: renamed point-of-sale class + new subwindow layouting system
[IMP] point_of_sale: restructured the main widget to use a generic scrollable subwindow system
[IMP] point_of_sale: more css adaptations for iPad / android + a few bug correction along the way
[MERGE] from trunk
[MERGE] from trunk
[WIP] point_of_sale: mobile ui optimisations
[MERGE] from trunk