ExoPlayer 2.12 compatibility

[dzolnai]

It seems that the player is not compatible with ExoPlayer version 2.12 anymore:

java.lang.NoSuchMethodError: No static method createContainerFormat(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;IILjava/lang/String;)Lcom/google/android/exoplayer2/Format; in class Lcom/google/android/exoplayer2/Format; or its super classes (declaration of 'com.google.android.exoplayer2.Format' appears in /data/app/~~jVe8yEwLsG4nogYGBGOCPA==/xx.xx.xx-TAExwcfzqhlJ_P0YQmDhVA==/base.apk)
        at hybridmediaplayer.CastUtils.mediaTrackToFormat(CastUtils.java:104)
        at hybridmediaplayer.CastPlayer.updateTracksAndSelectionsAndNotifyIfChanged(CastPlayer.java:689)
        at hybridmediaplayer.CastPlayer.updateInternalStateAndNotifyIfChanged(CastPlayer.java:603)
        at hybridmediaplayer.CastPlayer.setRemoteMediaClient(CastPlayer.java:746)
        at hybridmediaplayer.CastPlayer.<init>(CastPlayer.java:130)