Completed texture pack and preload particle.
preload boss and stop music while restart game.
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D

Conflicts:
	Classes/LoadingScene.cpp
Merge pull request #37 from Ryeeeeee/master

add bullet explosion
fix bug collision with big dude
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D

Conflicts:
	proj.ios_mac/Moon3d.xcodeproj/project.pbxproj
Merge pull request #36 from fusijie/master

Completed texture pack and preload particle.
tweaking main menu
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D

Conflicts:
	Classes/GameControllers.cpp
play again code
add muzzles
merge muzzle