Merge pull request #10 from edpaget/master

Include Rice note and build instructions for Ubuntu
Reorganizing set specs
Pairwise sets.  Closes #3
Stubbed grape API.  Closes #6. Towards #7.
Spec data
Moving fixtures
Set interface consistency
Data Adapters.  Towards #8
Spec adapter, project integration.  Towards #8
Cleaning up
Run specs for all project fixtures
Set sampling.  Abstracting pairwise behavior
Async data adapters
Use spec data for the API for now
Simple API actions
Skeleton API.  Closes #7
Remove conflicting status route and combine them
Towards API specs
Remove async adapter.  Possibly a bug in the Celluloid actor registry
Tweaking adapter/project interactions.  The adapter isn't an actor, but the call chain keeps the data load async.