add sound effect when press button
Merge branch 'v3quick' of github.com:dualface/cocos2d-x into v3quick
add modify samples
for unzip include
Merge branch 'v3quick' of github.com:dualface/cocos2d-x into v3quick

Conflicts:
	tests/coinflip/scripts/app/scenes/MenuScene.lua
Merge pull request #6 from htlxyz/v3quick

V3quick