Add Composer support

[Andrey]

Hi.

Could you add composer to your project? It'll allow use your repo as dependency in projects, which use composer. Now composer one of most popular tool for dependency management in PHP.

Thanks.

[Arthur Guy]

This would be great to have

[Daniel Boorn]

Thanks for the feedback! Composer would be a great addition. I'll see if I can fit an update in over the next few weeks.

[Daniel Boorn]

Composer added.