Bypass sigchild detection if phpinfo is not available
Merge branch '2.3' into 2.4

* 2.3:
  Revert "bug #10207 [DomCrawler] Fixed filterXPath() chaining (robbertkl)"
  Bypass sigchild detection if phpinfo is not available

Conflicts:
	src/Symfony/Component/DomCrawler/Crawler.php
Merge branch '2.4'

* 2.4:
  Revert "bug #10207 [DomCrawler] Fixed filterXPath() chaining (robbertkl)"
  Bypass sigchild detection if phpinfo is not available