Code review comment for lp://staging/~fwereade/pyjuju/go-place-unit

Reviewers: mp+108158_code.launchpad.net,

Message:
Please take a look.

Description:
add state.PlacementPolicy type, and state.Unit.Place method

https://code.launchpad.net/~fwereade/juju/go-place-unit/+merge/108158

(do not edit description out of merge proposal)

Please review this at https://codereview.appspot.com/6248076/

Affected files:
   A [revision details]
   M state/state_test.go
   M state/unit.go