Add riverwaterlogged sponge, rename wet sponge
tree2c3e335be40499c02b2e7d56f62b761d38a1b8e6
-rw-r--r-- 2970 API.md
-rw-r--r-- 2475 CONTRIBUTING.md
-rw-r--r-- 9185 GROUPS.md
-rw-r--r-- 26520 LICENSE.txt
-rw-r--r-- 3167 MISSING_ENGINE_FEATURES.md
-rw-r--r-- 11033 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