Removed releaseDocument from RemotePipeline
Removed releaseUrl from RemotePipeline (not used)
Removed RemotePipeline.keepLock() (only used in test)
Removed keepLock field from RemotePipeline (always false)
Merge pull request #290 from remen/keeplock

Removed keepLock field and releaseDocument from RemotePipeline
Merge branch 'master' of git://github.com/Findwise/Hydra