Initial Sync operations

Adding localToHdfs sync operations

Adding hdfsToLocal sync operations
Updating Configuration

squash! Updating Configuration
Moving TemporaryReferences to core

Updating TemporaryReferences to include Location's
Cleaning up sync operations
Cleaning up sys.error's
Adding environment variable for aws test bucket
Merge pull request #296 from ambiata/topic/sync-operations

Hdfs and local sync operations
Added Mutator for mutating facts
Introduce ExtractionInput to call Pivot.createPivotFromSnapshot again
FeatureReduction and Squash
Add squash to pivot
Inline SnapshotWindows.toDaysMax
Fix SnapshotWindows.startingDate to respect calendar