fixed DIRECTORY_SEPARATOR and

if tests running with Netbeans by folders follow should be fixed:
-class usage
-uniqid()
-Server\Fault::setEncoding('UTF-8')
Merge pull request #5191 in master
Merge pull request #5167
[#5191] Remove trailing comma

- invalidates JSON, breaking installation of component via composer
Merge branch 'hotfix/version-composer' into develop

Fix for issue introduced with #5191