colors polished
added springs to fireWork

semi good
dude rising
rising
lights
Merge branch 'marc_springsOnFire' into marc
keys added
new algorithmy and sweeter visuals
multiTrailSizes and physics get cleaned up of unused Forces after a particleSystem dies
sprites set to black and white but light colored (which gives a real nice effect)
trails fade and light colr update
Merge branch 'marc' into denny