Update zentyal-sogo.mas

to fix x-webobjects-server-url header
Updated Changelog
Merge pull request #1526 from Zentyal/jbahillo/webobjects

fixed wrong http/https SOGo redirects after login
releasing dhcp 3.2.4
Ignore cloud-sync warnings from cron
Merge pull request #1537 from Zentyal/cperez/silence-cloud-sync-errors

Ignore cloud-sync warnings from cron
Check external IP against different providers

* To be more reliable
* Using pure Perl (faster)
* With a timeout of 10s on each provider
Merge pull request #1544 from Zentyal/ejhernandez/reliable-ext-ip

Check external IP against different providers
releasing users 3.2.16
releasing jabber 3.2.2
releasing sogo 3.2.1
releasing squid 3.2.10
releasing usercorner 3.2.2
Merge branch '3.2' into 3.5

Conflicts:
	contrib/usercorner/ChangeLog
	contrib/usercorner/debian/changelog
	main/dhcp/ChangeLog
	main/dhcp/debian/changelog
	main/jabber/ChangeLog
	main/jabber/debian/changelog
	main/network/ChangeLog
	main/samba/debian/changelog
	main/samba/stubs/zentyal-users.cron.mas
	main/sogo/ChangeLog
	main/sogo/debian/precise/changelog
	main/squid/ChangeLog
	main/squid/debian/changelog
	main/users/ChangeLog