RavenDB-2636 Don't commit indexes to disk at each indexing run
RavenDB-2636 We don't need that
Fixing tests. Create commit points only if the index was flushed to disk.
Merge pull request #1340 from arekais/RavenDB-2636

RavenDB-2636 We don't need that
fix for corrupted pending transaction problem
Merge branch '2.5' of https://github.com/maximburyak/ravendb into 2.5
Better logs, better behavior for null changes
Actually output the licensing error when we can't renew Subscription
RavenDB-2640 When using old license, and renewing, make sure to update the license.
RavenDB-2639 When license check fails the database, we leave it hanging
RavenDB-2639 When license check fails the database, we leave it hanging
Merge branch '2.5' of https://github.com/ayende/ravendb

Conflicts:
	Raven.Database/Commercial/ValidateLicense.cs
	Raven.Database/Config/InMemoryRavenConfiguration.cs
	Raven.Database/Config/StronglyTypedRavenSettings.cs
	Raven.Database/Impl/DTC/InFlightTransactionalState.cs
	Raven.Database/Server/HttpServer.cs
	Raven.Tests/Bugs/Indexing/WiseShrek.cs
fixing after merge issues