v0.5.0

The program now makes a smaller JSON database with just the cheapest printing of each card and uses that when starting up. Database load times on startup should be much faster after the initial processing. The smaller database will be used until the age limit expires, and then a new one will be downloaded from Scryfall.

What's Changed

• database performance improvements by @hobosock in #13

Full Changelog: v0.4.0...v0.5.0