Vessels: new textures
New grass(plant) and leaves textures
Revert "Fix fire blocking sunlight"

This reverts commit dcce6e97959647fd625c1ce219721c0b800f4938.
New flower textures
Merge remote-tracking branch 'minetest_game/master'

Conflicts:
	mods/default/textures/default_grass_1.png
	mods/default/textures/default_grass_2.png
	mods/default/textures/default_grass_3.png
	mods/default/textures/default_grass_4.png
	mods/default/textures/default_grass_5.png
	mods/default/textures/default_leaves.png
	mods/flowers/textures/flowers_dandelion_white.png
	mods/flowers/textures/flowers_dandelion_yellow.png
	mods/flowers/textures/flowers_geranium.png
	mods/flowers/textures/flowers_rose.png
	mods/flowers/textures/flowers_tulip.png
	mods/flowers/textures/flowers_viola.png
	mods/vessels/textures/vessels_drinking_glass.png
	mods/vessels/textures/vessels_drinking_glass_inv.png
	mods/vessels/textures/vessels_glass_bottle.png
	mods/vessels/textures/vessels_glass_bottle_inv.png
	mods/vessels/textures/vessels_glass_fragments.png
	mods/vessels/textures/vessels_steel_bottle.png
	mods/vessels/textures/vessels_steel_bottle_inv.png
Increase abm intervals