SchedulerLogic ExecuteSync: save ScheduledTaskLog before the global execution
Merge branch 'master40'

Conflicts:
	Signum.Engine.Extensions/Scheduler/SchedulerLogic.cs
Remove Signum.Engine.Mailing.Pop3.Pop3Client, and use interface IPop3Client
Merge branch 'master' of https://github.com/signumsoftware/extensions
EmailMessage and EmailAttachment windows views
Example implementation of IPop3Client by OpenPop.Pop3Client
IPop3Client MessageInfo -> MessageUid
move and fix SMSMessageOperation.SendSMSMessage
generic EntityOperationSettings
Merge branch 'master' of https://github.com/signumsoftware/extensions
PopupNavigate and PopupView
Merge branch 'master' of https://github.com/signumsoftware/extensions
EmailAttachment: Set FileType
Merge branch 'master' of https://github.com/signumsoftware/extensions
Update translations
ReciveEmails
Merge branch 'ReciveEmails'
DBMS -> SqlServerVersion in SqlConnector