v1.0.3 Reference

What's Changed

• Adding optional reference field by @fredriksvantes in #8

Full Changelog: v1.0.2...v1.0.3

v1.0.2: Merge pull request #7 from ethereum/fredriksvantes-patch-1

Fixed attachment issue

v1.0.1: Update requirements.txt

Add Flask_Limiter

v1.0.0

Update [email protected] in public-keys.js