Update readme to point to links.

Change-Id: I1700d9602519975729e1909dc9be29efa4d2fa32
Allow instance methods to be wrapped and unwrapped correctly.

Change-Id: Ia29e0e8a54fa815dec88016a9444fe7cfad7b8ac
Added generic persistence API and datatypes

Added a generic API for persistence and generic
datatypes for use. Current generic API implements
a sqlalchemy backend.

Change-Id: I558f5ae31dd47d4f18052d8b57dd884c052fb4cf