Added Infrastructure for displaying custom messages
Made DialogNotificationService use EventAggregator
Merge branch 'master' into SetupWizzard#55
Merge branch 'master' into SetupWizzard#55
Fixed test
Fixed interface result
Used Dialog Notification service for errors.
Setup wizzard. Related to #55
Merge branch 'SetupWizzard#55' of https://github.com/pirvudoru/SubSonic8 into pirvudoru-SetupWizzard#55

Conflicts:
	Client.Common/Results/ServiceResultBase.cs
	Client.Tests/Main/MainViewModelTests.cs
Merge branch 'master' of github.com:Agilefreaks/SubSonic8