Merge pull request #41 from ariefwijaya/master

upgrade rxdart

Author: neckaros

pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
   flutter_web_plugins:
     sdk: flutter
   flutter_plugin_android_lifecycle: ^2.0.0
-  rxdart: ^0.26.0
+  rxdart: ^0.27.3
 
 dev_dependencies:
   flutter_test: