Moved css and js and a couple of templates over from 5.4, getting rid ofthe notoriously broken expand/collapse thread buttons. This commit is a workin progress, need to test and perhaps fix ...
improved form-fields: * extended set of attributes for all form-fields (disabled, form-widget-CSSclass answer} * handling of abstract form-fieldspassing options to Package->class::xowiki::FormPage: * handling of disabled form fields * hook for post-processign edit forms: post_process_edit_fields
Add foreign key constraint on user_preferences.locale to force referencial integrity. This column is now added by acs-lang at creation time, to create the constraint at the same moment.