fix of Issue RavenDB-1379 (http://issues.hibernatingrhinos.com/issue/RavenDB-1379)
Merge branch '2.5-voron' of https://github.com/ppekrol/ravendb into 2.5-voron
1) fixed staleness issues : IsMapStale was returning false during RemoveFromIndex task execution, IsReduceStale was returning false for indexes with name that contained upper case letters
2) minor fixes