[FIX]: Remove 'init_xml' keys, because it's no longer needed in v7.
[FIX]: Rename 'demo_xml' key to the new standard 'demo'.
[FIX]: Rename menu entry to "Renumber journal entries".
[FIX]: Change imports calls.
[FIX]: Remove __author__ variables in files, because authors are put on manifest file (__openerp__.py).
[FIX]: Increased compatibility with standard PEP8.
[FIX]: Delete test folder. On the next review I'll be able to create with YAML.
[IMP]:In selecting these come peridos sorted correctly. I modified the code to renumber the entries from period to period with this order.
- Changed types to orm.Model, orm.TransientModel and orm.AbstractModel.
- Change renumbering assistants in renumbering, show results and cancellation to version 7.
- Remove legacy code calls.
- Contributions have been written in the standard format of the community.
