Xs and Ws

This release not only brings support for xclip (which was requested a long time ago), but more importantly it now supports Wayland!
Thanks to the help of many people, foremost @markstos, @justinlovinger, you can now pick your favorite emojis and other characters without X11 (if you have a working rofi, of course).

Also, @katacarbix added some shortcuts to type or copy the codepoints themselves, if you ever need them. Thanks you!