TNT eyeheight changed

Tnt eyeheight was changed, causing alot of exsisting tnt based contraptions to break... (tnt cannons,blastchambers etc)

eyeheight was 0F but is now  0.15F

(this was probably done to fix tntentity rendering ontop of soulsand..)

this causes 2 tnt entities to launch eachother up if exploded inside the same block