updated to work on Dart 2.13

0.5.0+0

Merge branch 'master' of github.com:abner/flutter_js

Fixed the setup for tests

Fixes #36
Added documentation about testing javascript evaluation to the README.md

Updated README

Just updated the README.md

Added desktop platforms

• Added Desktop (Windows, Linux, Macox) platforms
• Fixed http fetch error
• Better Dart/Js integration

Upgraded http and ffi dependencies

0.2.4+0

upgraded dependencies to better support to flutter 2

0.2.3+0

updated flutter project