Default binder

[guewen]

Follows #76.

[guewen]

This is the change I want to promote: 1525a4a

As a call to browse() does not hit the database until we first access one of the fields (other than id), I think it is better to always returns a recordset. The API will be easier to use and it reduces the chances of developer errors, we have only one possible type in the return and one knows that she has always to call .id on the result of to_openerp() when she wants the id of a binding. It is also inline with the new API which returns recordsets instead of ids in search().

[lmignon]

👍 (code review)

[guewen]

Rebased. I would ❤️ to get this PR merged.

[sebastienbeau]

👍 👍 👍 👍 👍 👍 👍 👍 👍 👍 👍 👍 👍 👍
Yeeesssss, I totaly approve this PR

[bguillot]

of course 👍 !
I missed this one I approved the previous one ...