STORM-511 update startOffset in PartitionManager when submitted in fetch request one is out of range
STORM-511 fix updating internal state of PartitionManager
Merge branch 'STORM-511-offset-fix' of github.com:viktortnk/storm into storm-511
move new offset calculation to PartitionManager; Don't update metrics on failed fetchå
Merge branch 'master' of https://github.com/apache/storm into STORM-511-offset-fix
Merge pull request #1 from ptgoetz/storm-511

Storm 511 (minor changes)
Merge branch 'STORM-511-offset-fix' of github.com:viktortnk/storm