Texture Fixes

Two textures were mis-named. Also changed cave water to river water, to
limit potential flooding.

mapgen.lua

@@ -484,7 +484,7 @@ function vmg.generate(minp, maxp, seed)
 						if air_to_stone == 1 and math.random() < 0.08 then
 							local r = math.random()
 							if r < 0.03 then
-								data[ivm] = c_water
+								data[ivm] = c_riverwater
 							elseif r < 0.1 then
 								-- reserved
 							elseif r < 0.3 then

nodes.lua

@@ -200,7 +200,7 @@ minetest.register_node("valleys_mapgen:huge_mushroom_cap", {
 			{-0.33, -0.33, -0.33, 0.33, -0.17, 0.33}, 
 		} },
 	light_source = 4,
-	groups = {oddly_breakable_by_hand=1, dig_immediate=3, flammable=2},
+	groups = {oddly_breakable_by_hand=1, dig_immediate=3, flammable=2, plant=1},
 })
 
 minetest.register_node("valleys_mapgen:giant_mushroom_cap", {
@@ -218,14 +218,14 @@ minetest.register_node("valleys_mapgen:giant_mushroom_cap", {
 			{-0.4, -0.5, 0.4, 0.4, -0.25, 0.75},
 		} },
 	light_source = 8,
-	groups = {oddly_breakable_by_hand=1, dig_immediate=3, flammable=2},
+	groups = {oddly_breakable_by_hand=1, dig_immediate=3, flammable=2, plant=1},
 })
 
 minetest.register_node("valleys_mapgen:giant_mushroom_stem", {
 	description = "Giant Mushroom Stem",
 	tiles = {"vmg_mushroom_giant_under.png", "vmg_mushroom_giant_under.png", "vmg_mushroom_giant_stem.png"},
 	is_ground_content = false,
-	groups = {tree=1,choppy=2,oddly_breakable_by_hand=1,flammable=2},
+	groups = {tree=1,choppy=2,oddly_breakable_by_hand=1,flammable=2, plant=1},
 	sounds = default.node_sound_wood_defaults(),
 	paramtype = "light",
 	drawtype = "nodebox",