google/ExoPlayer — pull request #34 by lsjwzh (2014-08-21 07:58:37+00:00)
Title:   ensure that player do not release at ui thread to avoid ANR in some rom

```
public synchronized void release() {
if (!released) {
handler.sendEmptyMessage(MSG_RELEASE);
while (!released) {
try {
wait();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
internalPlaybackThread.quit();
}
}
```
when execute at main thread,'wait();' may cause ANR in some rom.