Give real no support to /media in Disk Usage

Even when modules report they use a file system mounted in /media
default value for @printers
default value for @printers
better error message when we cannot find which dns entry corresponds to the server host
rpcproxy error message for when we have not external ifaces configured
Merge branch 'master' into rpcproxy-better-message
Fix context name in warnOnChangeId call

Making warnOnChangeId works again
When creating domains take in account SLD
 Give support to data in use exception for in-place booleans
DisasterRecoveryDomains can notify other models
Remove debug statements
Merge branch 'ejhernandez/fix-warn-on-change-id' into ejhernandez/fix-warn-on-change-id-3.4

Conflicts:
	main/core/ChangeLog
	main/core/src/templates/dataInUse.mas
	main/core/www/js/table-helper.js
	main/remoteservices/ChangeLog
Added clamd socket actions to freshclam apparmor profile
Fix data in use behaviour on edition

Also in boolean in-place
Do not show success note if there is no note
Set the message in the trace
Merge pull request #1187 from Zentyal/ejhernandez/msg-in-stack-trace

Set the message in the trace
Fixed wrong calls to ClusterStatus constructor
Updated changelog
Merge branch 'master' into mjulian/ha-wrong-constructor-calls