Update to 0.4.0

  - Providing a new controller to Chewie now works (fixes #11)
  - Full Screen triggers Landscape on Android (fixes #12)
  - Support for video_player 0.4.0 - 0.5.0 (fixes #13)

pubspec.yaml

@@ -1,5 +1,5 @@
 name: chewie
-description: The video player for Flutter with a heart of gold
+description: A video player for Flutter with Cupertino and Material play controls
 version: 0.4.0
 homepage: https://github.com/brianegan/chewie
 author: Brian Egan <brian@brianegan.com>