[#1] Correct namespaces
Merge pull request #2 from Maks3w/hotfix/namespaces

[#1] Correct namespaces
Fixed composer.json and tests so that they run
Minor conditionals improvment.
Merge pull request #7 from Yousha/master

Minor improvments for conditionals.
Added failing test
Fixed header override
CS fixes
Added equals test for dummy header
Merge pull request #9 from youngguns-nl/header-override-fix

Header override fix