[SECURITY] Open redirection with jumpurl

jumpurl allows redirect to any given URL. A hash on the url
is now required to know if the jumpurl has been created
by the system or by the outside.

The hook "jumpurlRedirectHandler" can be used to allow
redirects without hash or to custom redirects.

Fixes: #28587
Releases: 6.1, 6.0, 4.7, 4.6, 4.5
Change-Id: I63da18b1963ec50cd95dd49d1669c9873b7bab54
Security-Commit: db8748be003fdbd7fd179c239dd3dc92543e90bf
Security-Bulletin: TYPO3-CORE-SA-2013-001
Reviewed-on: https://review.typo3.org/18732
Reviewed-by: Oliver Hader
Tested-by: Oliver Hader