Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

[video_player_web] Play videos from assets (flutter#2384)

* [video_player_web] Add support for asset DataSources

* Roll pub version

* Remove deprecated author field

* Respond to review comments

* Add back author field

* Delete author field again

* Fix pubspecs

* Fix handling of packages

* add back author to platform interface

we will fix this when we update the pubspecs for this package

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.

Update all pubspecs to work with the latest version of pub and Flutter (

flutter#2382)

* Migrated all plugins to the new [plugin platforms manifest](https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms)
* Removed `author:` and `authors:` fields from all pubspecs as the fields are deprecated, moved author names from various plugins to the repository's AUTHORS file.