CloudDespatch connector for magento (preview build)

This is a placeholder package for the CloudDespatch design preview.
The production connector will:
  - send each paid order to POST /api/v1/orders with the shop's order number as external_ref
  - keep stock in step using GET /api/v1/products and POST /api/v1/inventory/adjust
  - mark orders shipped with tracking when CloudDespatch sends order.despatched

Settings needed: your CloudDespatch account address and a connection key from
Developers > Plugins in your CloudDespatch account.

API reference: /developers
