Release v0.3.1

- First attempt at an Android build!  If you try it, let me know how it is on your device

- Added 'story mode'

- Mages earn gold from winning battles

- The next enemy in story mode shows up, but is disabled

- Two working shop upgrades available

- Revamped starting mage decks

- Made some easier enemies

- Cards have a color (instead of being all grey)

- Fixed typos and resized images