[FIX] account_chart_update: Corrected some english terms.
[IMP] account_chart_update: Changed name of menu to avoid excessive length.
[IMP] account_chart_update: Removed three line comments style.
[IMP] account_chart_update: Remove class instantiation.
[IMP] account_chart_update: Put method descriptions according documentation standards.
[IMP] account_chart_update: Updated translations.
[FIX]: Changed types to orm.Model, orm.TransientModel and orm.AbstractModel.
[FIX]: Fix deletion method for some fields of objects.
[FIX]: Contributions have been written in the standard format of the community.
[FIX]: Changes in the form to work as a real wizard.
[FIX]: Remove 'init_xml' keys, because it's no longer needed in v7.
[FIX]: Rename 'demo_xml' key to the new standard 'demo'.
[FIX]: Change imports calls.
[FIX]: Remove __author__ variables in files, because authors are put on manifest file (__openerp__.py).
[FIX]: Update view definitions to version 7.0
[FIX]: Rename variables to OpenERP standard.
[FIX]: Increased compatibility with standard PEP8.
