Fixed that Raven sessions were not disposed.
Merge branch 'develop' of git://github.com/NServiceBus/NServiceBus into develop

Conflicts:
	src/NServiceBus.Core/Persistence/Raven/RavenSessionFactory.cs
Added saga timeout integration test
Merge branch 'develop' of https://github.com/remogloor/NServiceBus into develop
Events were not being received by saga if there is a timeout for the same message type, closes #975
Removed logging from test