Remove duplicate suggest section in composer.json
Merge pull request #603 from JeroenDeDauw/cjson

Remove duplicate suggest section in composer.json
Removed unused field
Remove ref to class that does not exist
Merge pull request #606 from JeroenDeDauw/deadref

Remove ref to class that does not exist
Merge pull request #605 from JeroenDeDauw/unuzed

Removed unused field