Rough sketch of formats doc.
Update formats.md
Merge pull request #205 from ambiata/topic/formats

Rough sketch of formats doc.
Fix spelling in formats.md
fixed the scoverage compilation
Remove unused FileSystem import
Change ValueState to handle any ThriftLike value
Extract common setup for priority/namespaced mappers
Changed okCounter var to val
Added type alias MutableFact
Extract PriorityTagDerializer for reducing prioritized thrift values
Pass State function into PriorityTagDeserializer constructor to ensure correct handling
Merge pull request #197 from ambiata/topic/priority-mr-utils

Extract a few Priority-based helpers around MR jobs
upgraded to the latest specs2
Revert "Pass State function into PriorityTagDeserializer constructor to ensure correct handling"

This reverts commit 1343fc911120a895055d6016aa8fcd59bfd7baeb.
Revert "Extract PriorityTagDerializer for reducing prioritized thrift values"

This reverts commit d1cc061412ada4b334023c2735411e505183c10e.
Merge pull request #213 from ambiata/topic/revert-priority-mr-stuff

Revert PriorityTagDeserializer changes
Revert "upgraded to the latest specs2"

This reverts commit 7635044c041c1298b7f7a816cfce8ca621e1778f.
Revert "Revert "upgraded to the latest specs2""

This reverts commit be63c2fefdcedab241d63332f22ab9754ef5b1e2.
Changed FeatureStore to list of in mem Factsets