Similar to #153, attempts to pause in fullscreen mode will be negated by the `playbackLikelyToKeepUp` event.

This PR adds a check for `_fullscreenPlayerPresented`, in additional to `_controls` before calling `setPaused` for `playbackLikelytoKeepUp`.

This update is likely preferrable to #258, as it doesn't lose the empty buffer check.

* Add Android Expansion File Support

* Added notes for usage with Android Expansion file

* Update README.md

Added notes re: expansion file usage.

* formatting issue fixes

Added deallocation of observers

Add controls property to Android

use react native asset resolving

Readme file changes for react-native >= 0.29.0

- displays MediaController over the Video screen if enabled

android_missing_events

Merge pull request #252 from mroswald/refactor/replace-bind-statements-with-class-property-functions

replace bind statements

fix package name mismatch for Android

Added React import to android VideoPlayer Example

Added possibility to play video in background and when app is inactive.

[Android] naturalSize callback to match iOS version.