We need to check whether need to free quads and delete vbo/vao in the destructor.

CCParticleSystemQuad::~CCParticleSystemQuad()
{
    if (NULL == m_pBatchNode)
    {
        CC_SAFE_FREE(m_pQuads);
        CC_SAFE_FREE(m_pIndices);
        glDeleteBuffers(2, &m_pBuffersVBO[0]);
        glDeleteVertexArrays(1, &m_uVAOname);
    }
}