Clean up grass block group stuff
treeec21f4286f796447c83d7934ab0902276563ad3f
-rw-r--r-- 2896 API.md
-rw-r--r-- 2475 CONTRIBUTING.md
-rw-r--r-- 8764 GROUPS.md
-rw-r--r-- 26520 LICENSE.txt
-rw-r--r-- 3167 MISSING_ENGINE_FEATURES.md
-rw-r--r-- 10960 README.md
-rw-r--r-- 19 game.conf
drwxr-xr-x - menu
-rw-r--r-- 509 minetest.conf
drwxr-xr-x - mods
-rw-r--r-- 3182 settingtypes.txt
drwxr-xr-x - tools