RavenDB-1735. Voron: Implement TramsactionalStorage.GetDatabaseSizeInBytes
the following changes included:
1)fix for RavenDB-1740
2)added credentials when ReplicationInformer::RefreshReplicationInformation() is called
3)fix after bad merge for WriteBatch.cs
Merge branch 'New3' of github.com:ayende/ravendb into New3
RavenDB-1717. Voron: Add temp path option
Merge branch 'New3' of https://github.com/ayende/ravendb into RavenDB-1717
fixes for RavenDB-1745
Merge commit 'bf2d5c5ea236e5bda2f6ffd04140303776c4311e' into New3

Conflicts:
	Raven.Voron/Voron.Tryout/Properties/AssemblyInfo.cs
	Raven.Voron/Voron/Impl/Journal/WriteAheadJournal.cs
	Raven.Voron/Voron/StorageEnvironment.cs