Memory utilization

[ishmulyan]

When load image by cc.loader.load(), registered loaders (_cc.imgLoader and _cc.serverImgLoader) automatically create texture for image by complete loading and add it into cc.textureCache.
In my opinion this is not clearly, because cc.loader.release() didn't clear texture from cache and reference for image still store into texture cache and gc can't unload image from memory. We should be additionaly clear image from texture cache.
Should be cc.loader.release() clear image from cc.textureCache?