Log Message:
Updating net/p5-Net-eBay from 0.50nb1 to 0.54

pkgsrc changes:
- Add license definition
- Adjust dependencies

Upstream changes:
0.54    Refined listing script to reflect a "no foreign sales" policy.
0.53    Added support for return policy in my sample listing script
0.52    Patch by Michael Hendrix to make eBay client retry up to 2
        times (configurable) in case of connection errors.
0.51    Added a missing dependency.