MFH: r474809

Update to 7.6.30

Changelog: https://typo3.org/article/typo3-931-8717-and-7630-security-releases-published/

PR: 229835
Submitted by: Helmut Ritter <freebsd-ports@charlieroot.de> (maintainer)
Security: ef013039-89cd-11e8-84e9-00e04c1ea73d

Approved by: ports-secteam (riggs)