renamed store to feature store
Merge pull request #208 from ambiata/rename-stores

Rename stores to feature stores
using an unsafe method to get the Namespace Name in the mr code
fixed the parsing of hadoop arguments from the command-line for cli applications
added a fix for the failing IvoryCmdSpec specification
Remove redundant placeholders
Validate Thrift facts on ingest
Merge pull request #214 from ambiata/topic/thrift-ingest-validate

Validate Thrift facts on ingest
removed "hole in the middle" funtion when ingesting facts
added the snapshot id to the SnapshotMeta class
removed the hole-in-the-middle for snapshots
cleaned-up the chord code
using as(x) instead of .map(_ => x)
merged with master