Update master#5

Merged

otopba merged 5 commits intootopba:masterfrom

Sep 16, 2019

Commits on Sep 12, 2019

[webview_flutter] Allow underscores anywhere for Javascript Channel name (#1996)

zhongwuzw
authored and
amirh
committed
[url_launcher] Removed reference to rootViewController during initialization (#2038)

vitor-gyant
authored and
Michael Klimushyn
committed
[google_sign_in] Fix chained async methods in error handling zones (#2059)
mehmetf
authored

Commits on Sep 16, 2019

[Camera] Fixes NullPointerException (#2057)

juliocbcotta
authored and
Michael Klimushyn
committed
[google_maps_flutter] Prefer const constructors. (#2065)
Michael Klimushyn
authored