Upgrade to latest phoenix versions

[axelson]

This project is still using 1.1.4, is it possible for this library to be upgraded to the latest (currently 1.2.1). One of the main benefits is presence support.

[nelsonic]

Hi @axelson / @chrismccord (and anyone else interested ...),
In light of the fact that Chris is super busy building Phoenix (thank you so much BTW!!)
We have, based on Chris's fine chat example, built a "complete beginner's tutorial" for Phoenix Chat.
We have updated, expanded and extended Chris' original with screenshots, code explanations, etc.
Please see: https://github.com/dwyl/phoenix-chat-example
It includes instructions for testing, continuous integration and deployment to Heroku.
Hopefully it's helpful to the Elixir/Phoenix Community. ❤️

[nelsonic]

Upgraded the Chat Example from Phoenix 1.3 to 1.4 and it was a breeze!
hardly any changes were required see: https://github.com/dwyl/phoenix-chat-example/pull/13/files
(Chris and Community have done a superb job with 1.4! thanks! 😍)

[nelsonic]

Anyone reading this in 2023, we just updated to Phoenix @ 1.7 rc2: github.com/dwyl/phoenix-chat-example
PR shows the changes from Phoenix 1.6.x --> 1.7 rc2: github.com/dwyl/phoenix-chat-example/pull/152