each time the Raven.Tests.Core server is starting, we delete its data directory + test fixes
Merge branch 'master' of https://github.com/mdavis/ravendb
Minor edits
Merge branch 'RavenDB-2675' of https://github.com/arekais/ravendb
add global flag for UseOptimisticConcurrency

https://groups.google.com/forum/#!topic/ravendb/KdcI79LYGZc
RavenDB-2768 While a restore operation is running, the studio should show only the log.
RavenDB-2759 Make compact process async
RavenDB-2760 Add compact for RavenFS
RavenDB-2794 IndexOutOfRangeException when Lazy Load with Transform on non-existing document
RavenDB-2793 Pass parameter to Lazy Load on Transformer
Merge branch '2.5' of https://github.com/ppekrol/ravendb

Conflicts:
	Raven.Client.Lightweight/Document/Batches/ILazySessionOperations.cs
	Raven.Client.Lightweight/Document/Batches/LazyTransformerLoadOperation.cs
	Raven.Client.Lightweight/Document/DocumentSession.cs
	Raven.Client.Lightweight/Shard/ShardedDocumentSession.cs
	Raven.Tests/MailingList/LazilyLoadByIdsWithTransformer.cs
	Raven.Tests/MailingList/TransformWithLoad.cs
after merge fixes
RavenDB-2801 Document editor - issues with height
RavenDB-2799 API Keys
Merge branch 'RavenDB_2801' of https://github.com/ml054/ravendb
Merge pull request #1460 from ppekrol/2.5

RavenDB-2793 & RavenDB-2794
Merge branch 'RavenDB_2759_2760' of https://github.com/ml054/ravendb
Merge branch 'master' of https://github.com/ppekrol/ravendb
better message when disk is almost full
RavenDB-2777 Error on map reduce index much earlier to avoid data file growth