[IMP] l10n_es: Added updated taxes (IVA 21% and so on...)
[FIX] l10n_es: Incremented version number to allow automatic updates.
[ADD] l10n_es: Added chart account and templates for associations.
[FIX] work around bug preventing to validate invoices in multicompany setting
[FIX] some missed access to currency_id through company_id
[MERGE] account: safer code for accessing company currency data, in order to avoid errors in some multi-company setups, courtesy of Alexandre Fayolle (Camptocamp)
[MERGE] l10n_es: updated version of Spanish localization, including a new Chart for associations, courtesy of the Spanish localization team (via Pedro Manuel Baeza, Serv. Tecnol. Avanzados)
[MERGE] l10n_es: updated version of Spanish localization, including a new Chart for associations, courtesy of the Spanish localization team (via Pedro Manuel Baeza, Serv. Tecnol. Avanzados)
[MERGE] account: safer code for accessing company currency data, in order to avoid errors in some multi-company setups, courtesy of Alexandre Fayolle (Camptocamp)