added boss graphics, menu music, compressed mp3 file
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D
basic boss done
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D

Conflicts:
	Classes/LoadingScene.cpp
	Resources/Flux.mp3
	proj.ios_mac/Moon3d.xcodeproj/project.pbxproj
delayed enemy spawn, so it doesn’t kill player instantly
fix link problem
added back project files
did i fixed vertex glitch??

had to disable layerColor draw code, as it is buggy
add member variable initialisation
add plane in main menu
Merge branch 'master' into fix_crash
uncomment code
uncomment laycolor
add glBindBuffer(GL_ARRAY_BUFFER, 0);
fix compile warning
Merge pull request #31 from dabingnn/fix_crash

Fix crash
Fixed NotifationCenter bug && Add gameover control
Merge pull request #32 from fusijie/master

Fixed NotifationCenter bug && Add gameover control
updated boss behaviour
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D
modify mainmenu & merge gameoverlayer