Update flog threshold
Replace rvmrc configuration with ruby-gemset
Merge branch 'master' into adamantium-flat
Merge pull request #30 from ahamid/adamantium-flat

Add spec for mutable enumerator impls
Update Relation to use Adamantium::Flat explicitly

* Remove tuple freezing from Relation initializer
Fix spec to pass
Refactor integration spec
Update flay threshold