NEW FEATURES :
.cloning or copy/pasting objects keeps the attaches and connections
BUG FIXES:
.bullet trails could still crash
.pressing F after deleting objects could crash
.removed the player 1.5 seconds invincibility time after coming back from the Play/go back to the menu menu
.sfx object particles rendering order was not right after enabling or choosing a new particle effect
.sfx object particles rendering now clip with 3D objects
.after modifying the particle effect used by the bullet canceling, the bullet effect was not updated (regression)
.modifying a closed path 1st waypoint speed created wrong speed when duplicating the enemy
.small UI fix