Changed the one step checkout so that it uses more original odoo co…

[nafex]

…de. To be more update safe.

[jholze]

@nafex @rruebner @christophlsa Suggestion from my side: lets split the checkout in a generic checkout addon which is useable for all countries and more odoo default based and lets create some small addons for country based enhancements like profiles in the OCA bank statement import addons eg. osc_custom_german ...

Just an idea.

[christophlsa]

Some general notes to the changes:

• Several parts in the controllers and javascript files were removed/changed. Here we have to look what you changed.
• The addon was changed to remove the ability to (de)activate the whole one step checkout without uninstalling the addon. We should discuss if this is a good idea. @jholze
  • Pro: We are saving no values in the models (except the config options). So no data will be removed on uninstallation. Also we need no further steps to really use the onestepcheckout. Further we can remove some conditions and use more odoo core parts.
  • Contra: To temporary deactivate the onestep checkout you have to uninstall the addon. If you create addons which have a dependency on this addon then they will also uninstalled (with potential data loss).
• The functionality of the manual selection of the allowed countries was removed. Here we should also discuss if this functionality is desired in the "base addon". @jholze
• Depending on the outcome of the both last points the options should be removed if the functionality is removed.

Further comments will be done directly at the changes.

[christophlsa]

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