Fix to unit test to better detect failure reason.
Merge branch 'dev' of github.com:/EventStore/EventStore into dev
Small refactorings of DVU.
Merge branch 'dev' of github.com:/EventStore/EventStore into dev
Added IsNotEmpty for convenience.
Merge branch 'dev' of github.com:/EventStore/EventStore into dev
Fixed bug in transaction offset determining on start of transaction.