[*] BO: updating option labels et descriptions for AdminSupplyOrders.
[*] BO: clarifying discount option hint. Fixes PSCSX-289.
[*] BO: updating option labels et descriptions for AdminShopGroup.
[*] BO: updating option labels et descriptions for AdminShopGroup (2).
[*] BO: clarifying discount option hint (2). Fixes PSCSX-289.
Merge pull request #1198 from xBorderie/patch-1

[*] BO: updating option labels et descriptions for AdminSupplyOrders.