fix crash iOS9

Added support for automaticallyWaitsToMinimizeStalling property on iOS

Fixed Exoplayer doesn't work with mute=true TheWidlarzGroup#1696

- Bump Exoplayer to 2.10.4
- Remove deprecated usages of Exoplayer methdos
- Add `ReactExoplayerConfig` as extension points to configure the Exoplayer instance

fix typo in README

…Group#1768)

The progress message handler will duplicate recursions of the `onProgressMessage` handler on change of player state from any state to STATE_READY with `playWhenReady` is true (when video is not paused). This clears the messages on STATE_IDLE and STATE_BUFFERING to break the recursion.

…ues have not been released

…Controller

…ntroller-keypath-leak

Fix playerviewcontroller keypath leak of observers

…2311)

Fix AudioFocus bug that could cause the player to stop responding to play/pause in some instances.

Fixes issue TheWidlarzGroup#1945

This was caused by the player requesting audio focus on each play (un-pause) and that resulted in a small window of Audio focus loss and then gain. The focus loss results in the player being paused while the player was supposed to play at the time. The solution is to keep track of Audio focus and not request new focus if we already have it.

Upgrade ExoPlayer from 2.11.4 to 2.13.2 and fix any issues related to the upgrade and deprecated method use.

…y-rate-modifier

Fix: iOS rate is reset to 1.0 after play/pause TheWidlarzGroup#1930

Update exoplayer to allow pre-init and content clear

Fix for tvOS native audio menu language selector

Resolved ignored silent switch in iOS when player is set to paused

This version is available from the Google repository, so it avoids us
needing to host it ourselves since jcenter is shutting down soon and
already pretty unreliable

These dependencies were previously removed on our fork because they are
Apache-2.0, and they accidentally got reintroduced when merging the
updates from the main repo.