1.1.0

Dart 2 support! There should not be any breaking changes. Please do file issues if you have problems.

1.0.1

Fixed onActivityResult override that was potentially preventing other plugins from receiving Activity results.
Fixed a logout crash on Android in the case when the user wasn't already logged in.
Fixed #1 by returning NSNull from the sessionToMap method when the twitter session is nil.
Fix #2 by clarifying the documentation. Also explain the toMap and fromMap methods of TwitterSession more clearly.