cannot Batch and Rollback at the same time
if unclean shutdown occurred, checking if last indexed doc (that is not deleted) etag is greater or equal to index stats etag
When merging index segments, make sure we have an indexWriter
Fix tab/white-space inconsistency in Index.cs
Merge pull request #1056 from e-tobi/2.5.x

2.5.x
minor
fixes + prefetchingBehavior debug endpoint
removed $type added in prev pull request according Simon Bartlett request
Merge branch 'RavenDb_2428_2.5' of https://github.com/ReginaBricker/ravendb
Merge branch '2.5' of github.com:ayende/ravendb into 2.5
Add a note in the description of RavenDB.Database nuget package about the "Unable to install current RavenDB.Database nuget package" issue
storing highest etag in index and validating against it during power failure
cleanup
Merge branch '2.5' of https://github.com/ayende/ravendb into power-failure

Conflicts:
	Raven.Database/Indexing/Index.cs
Merge pull request #1072 from ppekrol/power-failure

Power failure
RavenDB-2421 Multi-tenant scaling and concurrent request limits
Merge branch '2.5' of github.com:ayende/ravendb into 2.5
Add ActiveBundlesProtection bundle to 2.5
we should rely on a transaction cleaner (timer) for tx rollback
Merge pull request #1082 from ppekrol/dtc-issue

dtc issue