www/drupal7: Update from 7.54 to 7.56

[joneum]

Summary

• www/drupal7: Update from 7.54 to 7.56
• Changelog: https://www.drupal.org/project/drupal/releases/7.56

Approved by: xxx (mentor)
MFH: 2017Q3
Security: 4fc2df49-6279-11e7-be0f-6cf0497db129
#Differential Revision: https://reviews.freebsd.org/xxxxx

Test Plan

% portlint -AC
WARN: /usr/home/joneum/dev/ports/www/drupal7/pkg-plist: [227]: enumerating info files in the plist is deprecated in favor of adding info files into the Makefile using the INFO macro.
[..]
WARN: /usr/home/joneum/dev/ports/www/drupal7/pkg-plist: [1109]: @[un]exec is deprecated in favor of @<pre|post>[un]exec as the latter specifies the exact part of the pkg lifecycle the commands need to run
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
0 fatal errors and 132 warnings found.

poudriere testport:

10amd64
10i386
11amd64
11i386
12.0-CURRENT r320266 amd64
12.0-CURRENT r320266 i386

[junovitch]

Looks good Jochen. VuXML already covers this in http://www.vuxml.org/freebsd/4fc2df49-6279-11e7-be0f-6cf0497db129.html. Please consider this ports-secteam approval as preapproval to immediately MFH when you commit. Thanks!