Made the move to Loch Ness, and got some basic page grouping functionality working. TODO: fix some UI issues in Javascript ACL editor and change non-JS ACL editor to work with page groups too
// UK lang variables
tinyMCE.addToLang('',{
directionality_ltr_desc : 'Direction left to right',
directionality_rtl_desc : 'Direction right to left'
});