3082 [video_player] Fix tests (cla: yes)

3084 [video_player] Playback speed (cla: yes)

3088 [plugin_platform_interface] Fix homepage in pubspec.yaml (cla: yes)

3089 [connectivity_for_web] Fix homepage in pubspec.yaml (cla: yes)

3091 [google_maps_flutter] Out of developers preview, bump to 1.0.0 (cla: yes)

3093 [google_maps_flutter_web] Fix convert.dart issues (cla: yes)

3097 [url_launcher] Improved documentation of the headers parameter. (cla: yes)

3098 [image_picker] Update README.md  (cla: yes, waiting for tree to go green)