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Also, unfinished explosion effects (working but doesn't show up where
the "explosion" happens)
Merge branch 'dev' of github.com:uspgamedev/sol into dev

Conflicts:
	game/samplescene.lua
Prettier Pong
Removed scene.lua
Removed old control properties
Property 'collides' depends on property 'visible'

Because the hitbox uses it ¬¬
New helper: unique

Generates an unique version of the given string
New helper: get

Gets something from an element
New trigger: collision

Checks who is colliding
Collision trigger only activates on collided element
Merge branch 'IDgenerator-helper' into dev
Fixed 'temporary' usage in explosioneffect
Merge branch 'dev'