PSR-7, composer

[judgej]

I have been working on a fork here:

https://github.com/academe/phpParticle

The aims were initially to make working with composer a little smoother. I've then decided to remove the reliance on curl and try to implements the package through PSR-7 messages, so that any PSR-7 HTTP client can be used to send and receive the messages.

Now, this brings in various composer dependencies too. You may or may not be interested in this fork or the direction I am taking it. So, any comments or questions? Is this something you would be interested in, or do you with to keep your package more standalone (just phpParticle.php is enough to talk to the API, with no other libraries needed)?

If this isn't something you want, I can change the namespace and keep it as a permanent fork. It will still be a fork, so cherry-picking changes will be possible.

What do you think? Useful to you, or go my own way?