New icons

We added new mappings for the menu, more-vertical, edit, copy, move, download, log-in, log-out, th icons. They can be used using the Icon Themes service and they have equivalent in both Silk and FontAwesome themes. 

Also with the upgrade to Font Awesome 4.7.0 we improved the mapping for the basket, bell_delete, book_addresses, cake, calendar_add, calendar_delete, cart_add, chart_curve, cursor, emoticon_smile, hourglass, newspaper, note, paintbrush, shape_group, shape_ungroup, sitemap, television, thumb_down, thumb_up, tick, user_add, user_delete, weather_snow icons.