Updated NuGet packages
Added Couchbase eventstore persistence project and test project with all NuGet packages and dependencies in place
Added Couchbase event store implementation and an integration test (skipped)
Added Couchbase persistence NuSpec file
Downgraded Newtonsoft Json.NET to version 4.5.1 in Couchbase persistence test project
Added order by version in Replay function of CouchbaseEventStream
Added MongoDB eventstore persistence project and test project with all NuGet packages and dependencies in place
Added EventStore, EventStream and EventStoreBuilderExtensions
Implemented MongoEventStream
Further implementations and tests
Removed misspelled projects
Added MongoDB persistence NuSpec file
Merge branch 'mongodb' into develop
Reordered refelection statements to match the order of arguments
Removed unused RavenQueryableExtension method 'GetAll'
Bugfix: Commit events after saving them in the event store
Reordered unit tests in the RavenDB persistence test project
Merge branch 'couchbase' into develop

Conflicts:
	source/SimpleDomain.EventStore.RavenPersistence.Test/packages.config
	source/SimpleDomain.Test/packages.config
	source/SimpleDomain/packages.config
Renamed MongoIntegrationTest to IntegrationTest
Reordered unit tests in the Couchbase persistence test project and skipped tests which target the real database