www/groupoffice: Update from 6.2.51 to 6.2.52

[joneum]

Summary

• www/groupoffice: Update from 6.2.51 to 6.2.52

• Pet portlint about USES=

• Changelog:
  • Core: Added GO.form.DateFieldReset field
  • Core: Check cachelisteners after module installation.
  • Core: updated XSS detection so it checks for a space after the tags
  • Email: show Email Selection Template dialog if you have more than 10 Email Template

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:

10.3-amd64
10.3-i386
11.1-amd64
11.1-i386
12.0-CURRENT r321899 amd64
12.0-CURRENT r321913 i386