[IMP] models: remove `perm_write` method.
[FIX] models: rename method `perm_read` to `get_metadata`.
[IMP] base: update "base.module.update" to new api.

Also rename fields to avoid warnings
[FIX] test_new_api: fields with delegate=True must be required.
[FIX] product: rename function field function to avoid conflict with column name
[FIX] calendar: rename function "calendar_last_notif_ack" on "res.partner" to avoid conflict with column name
[FIX] mail: rename "read" field on "mail.notification"
[FIX] account_payment: rename function of function fields "info_{owner,partner}"
[FIX] account.move.line: rename field "reconcile" to "reconcile_ref" to avoid ambiguity with the reconcile() method
[FIX] project: do not compare apples and oranges.
[FIX] sale_stock: do not compare apples and oranges.

(please beware of operator priority)
[FIX] test_inherit: add dummy access rights
[IMP] models: small code improvement in get_metadata()
Merge pull request #13 from odoo-dev/master-apiculture-nowarn

Master apiculture clean up warnings