cocos2d/cocos2d-x — pull request #3985 by joewan (2013-10-20 07:56:26+00:00)
Title: 1.release array for uihelper; 2.fix bug.

sometimes we call CCSpriteFrameCache::purgeSharedSpriteFrameCache in other places,
UIHelper still keeps the filenames in "UIHelper::m_textureFiles" and then we can not addSpriteFrame successfully for these files again.