修复偶发的磁盘缓存开启的情况下图片无法加载的bug
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update OtherUtils
release 2.6.8
修复偶发的线程被取消时, 导致wait()无法释放锁导致图片无法加载的问题.
update LruMemoryCache
update ResLoader
update HttpHandler
release 2.6.9
Merge remote-tracking branch 'auth/master'