FIX:GLLevelMeter显示倒置的问题,EAGLContext->CAEAGLLayer之间的坐标系转换系统会自动做处理,无需通过代码多做一次转换
Merge branch 'develop'

Conflicts:
	CCRichTextEditor/Audio/CCAudioViewController.mm
	CCRichTextEditor/Audio/Views/AQLevelMeter.mm