(fix) search button not working in shop/catalog
(added) calendar (mysql only), export to iCal (icon in event table to make export of event), event can then be imported to any application that supports iCal specifications
(added) multi-line sub-menus, experimental feature to add more options to sub-menus, template needs to be updated to support this (currently only templates : nuove_15_m, nuove_14 and nuove_12 supports it)