
1.3
- added buyer shops
- changed json product list type to indexed array


1.2
- custom currencies can be registered
- changed format of world "server_shops.json":
  - "sells" keyword changed to "products"
  - added required "type" keyword can be:
    - "sell" to register new seller shop
    - "currency" to register new currency
    - "suffix" to set a suffix to display after deposited amount
  - currencies can be registered using "currency" type:
    - subkeys are "name" (string) & "value" (number)
- "currency" mod minegeld notes not registered automatically
- displayed currency suffix can be customized or omitted
- no longer uses node meta for formspec


1.1
- use json format for shops configuration in world directory
- switched id & name parameters positions in register_shop
- show preview image of selected item
- node owners can't set ID unless they have "server" priv


1.0
- created node
- created simple textures
- formspec displays items & prices of associated shop
- minegeld notes can be deposited & refunded
- shops are configured from world directory
- players with "server" priv or node owners can set ID
- players with "server" priv or node owners can dig
- implemented deposit, purchase, & refund functionality
