Adding mixed-in class method for models.
Added Relationship class.
Starting work on Primary class.
Making Relationship robust.
Added Collection class.
Adding Collection abstraction.
Basic functionality all done. Needs testing in corner cases.
Bumped version, removed dead code.
Added README
Impoving Collection attachment and README.
Updated README.
Updated README.
Added license and AR dependency.
Merge branch 'master' of github.com:OrcaHealth/prim
Fixed direct relationship support (no through tables).
Improved primary scoping and fetching. Added virtual attr.
Bumped version to 0.0.4.
Added missing active_support requirement.
Working toward R3.2.11 compat.