The summon statement can now summon projectiles. You can now make arrows rain down the skies !
Summoned arrows cannot be picked-up.
All projectiles may apply damage.
New entity properties for projectiles : projectile_damage, velocity and direction. Check the wiki for more infos.
New property for orbs: max_blocks_hit : destroys orbs after a specific amount of block collisions.
Miscellaneous
Entity attributes will now have access to the whole "summoning context" instead of just the spell runtime. If you have custom attributes, you may want to change the third type.
Added an update-check to look for the latest version.