www/groupoffice: Update from 6.2.39 to 6.2.40

[joneum]

Summary

• www/groupoffice: Update from 6.2.39 to 6.2.40

-Changelog:
*Files: Fixed issue that file handlers where always displayed, also when the user didn't have rights to the module the filehandler was added from.
*Billing: Undo custom fields to billing items
*Billing: add custom fields to billing items
*Core: Fixed some issues when using PHP 7.1
*Defaultsite/Tickets: Added password expire feature to the external ticket website.
*Z-Push install defaults to 2.3.6

Approved by: xxx (mentor)
#Differential Revision: https://reviews.freebsd.org/Dxxxxx

Test Plan

~/dev/ports/www/groupoffice % portlint -AC
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
WARN: Makefile: "RESTRICTED" found. do not forget to update ports/LEGAL.
0 fatal errors and 2 warnings found.

poudriere testport:

10amd64
10i386
11amd64
11i386
12.0-CURRENT r318899 amd64
12.0-CURRENT r318400 i386