seomoz/askari — pull request #104 by phs (2013-11-10 19:12:03+00:00)
Title: Phs/relation get and scan can read whole relations

`Relation#create_get` get family options, and `families: :relation`. `families: :relation` includes all families in the relation schema. Scans get this new option as well.

`ExecutionContext#relation` considers all families when passed an op. This way, if you get a relation back at all, you can be sure all families (say, in a passed put) are within.