Move CmdString to silk-core
Add SilkEnv and remote data download
Add numNodes and randomNode functions to NodeManager
SilkEnv impl start
ConnectionWrap -> ServiceGuard
Simplified SilkClient preparation using ServiceGuard
Add SilkEnv
Record SilkMaster info to ZooKeeper
MasterRecord is outside of MasterRecordComponent to enable serialization
traverse annonymous functions in ClosureSerializer
Fixed ClosureSerializer
Suppress log messages
Add assertions in ClosureSerializerTest
Fix log messages
fix test case
Implement SliceInfo get/put methods in InMemoryFramework
Fix test case
Add retrieve function
getSlices now returns Seq[Future[Slice[A]]]
Mixed-in ExecutorComponent to SilkService