Cleanup in composer.json

[nicosomb]

Today, we have lot of dependancies in composer.json and github requests a token. I believe (but not sure) it's because our libraries are not tagged.

@j0k3r @FabienM any idea?

[j0k3r]

I guess this is because we use these deps as vcs so Composer can't get an archive from that vcs and need to clone the project.

What should be done:

• tag each libraries (which seems to be already done)
• use tag in composer.json

If it still doesn't work we need to declare them on packagist.

Also, I think we can cleanup few things, like kriss_php5, I don't think we need this one.

[nicosomb]

Done.