IMP l10n_it_account adding _get_tax_amount to be used by electronic invoices (#606)
IMP l10n_it_account adding _get_tax_amount to be used by electronic invoices (#606)

dcorio/l10n-italy,OCA/l10n-italy,OCA/l10n-italy,OCA/l10n-italy,dcorio/l10n-italy,dcorio/l10n-italy