A minor installer fix to get the installer to run again. TODO: fix bad call to $lang->get() in preinstallation environment set up by index.php
// UK lang variables
tinyMCE.addToLang('layer',{
insertlayer_desc : 'Insert new layer',
forward_desc : 'Move forward',
backward_desc : 'Move backward',
absolute_desc : 'Toggle absolute positioning',
content : 'New layer...'
});