Minetest Menu Designed

The current formspec for the main menu is austere, boring and untweakable. This pull includes 2 styles of design. The code also allows to people, and particulary the game's authors, to easily set their own textures for the menu.

Please, click on the images and set the zoom of your web-browser at 100% to see the real thing. Or download them for trying.

- *Style 1* : https://mediacru.sh/400d5b8bbcb0
- *Style 2* : https://mediacru.sh/60c17d29204e