Filter out all non-printable characters in StringValue arbitrary
Include virtual definitions for pivot/eav and ingest specs
Upgrading notion and saws version
Merge pull request #355 from ambiata/topic/notion

Upgrading notion and saws version
Remove unused thrift Dictionary from Pivot
Added argonaut to the list of dependencies for the projects and the storage sub-project in particular
Added agronaut dependency to core and data
Added CodecJson instance for Identifier
CodecJson instance for Date
Added CodecJson instance for SnapshotId
WIP: SnapshotMeta
Proper CodecJson instance for Date
Cleaned up the CodecJson instance for Date
CodecJson instance for CommitId
minor renaming
WIP: writing the function to actually load the metadata it can find
Load and parse Snapshot metadata
Fixed up the Date json codec instance
Cleaned up the CodecJson instance for Date
save function for SnapshotMetadata