made ThunderTanks and Alerts more of a plug and play module pattern
added SoundManager 2
added credits and started sound library
play intro sound on successful connection
added app cache
Merge branch 'master' of github.com:mrmoses/thunder-tanks
updated Sanish's bullet polygon collision implementation (reverted some stuff)
added Line entity (for debugging stuff)
fixed using Block lenght/height
removed get_collision_circle from Poly
created Bullet moveForward event
updated Bullet aabb collision to also detect Poly collission, a updated richochet to work on angled surfaces (Poly)
updated to 60 FPS
fixed Bullet skipping edge-to-edge collisions
added black border to Blocks
added map boundary walls
set Classic as the default map