[FIX] Refund payment: Error occurred while validating the field(s) amount_currency
[IMP] use ternary if/else operator and replace <> by !=
[MERGE]
[IMP] PEP8
[FIX] account_voucher: Refund payment: Error occurred while validating the field(s) amount_currency
[FIX] account_voucher: Refund payment: Error occurred while validating the field(s) amount_currency
Merge branch 'rs-ocb-7.0' of github.com:akretion/openerp-addons into rs-ocb-7.0