Update Client.php

soapVersion is not reachable, thanks to strtolower($key) :)
Add test PRG plugin with SegmentRoute having :controller
Fix PRG plugin wrong redirection with SegmentRoute having :controller
Fix generating array with unsorted keys
Merge pull request #4543 from Goram/master

soapVersion key is not reachable
Merge branch 'hotfix/4543'

Close #4543
Merge pull request #4561 from noopable/hotfix/post-redirect-get-controller-redirect

Fix the controller plugin PostRedirectGet wrong redirection (in MVC)
Merge branch 'hotfix/4561'

Close #4561
Merge pull request #4566 from ftdebugger/zend_code_value_generator_issue

Fix generating array with unsorted keys
Merge branch 'hotfix/4566'

Close #4566