Complete `onConnected` with error if connection fails to open (#42)

* Complete `onConnected` with error if connection fails to open

This prevents `onConnected` from hanging indefinitely if the `SseClient`
immediately fails to open.

Fixes https://github.com/dart-lang/sse/issues/41.

* Recompile the test app

* Add changelog entry and update version
4 files changed
tree: ef32020af26bb2cb509b64259ed1aa5c3ef20e0e
  1. example/
  2. lib/
  3. test/
  4. tool/
  5. .gitignore
  6. .travis.yml
  7. analysis_options.yaml
  8. AUTHORS
  9. CHANGELOG.md
  10. CONTRIBUTING.md
  11. LICENSE
  12. pubspec.yaml
  13. README.md
README.md

This package provides support for bi-directional communication through Server Sent Events and corresponding POST requests.