Prepare for version 0.4.2 (update to blade-ink v0.4.1)

Prepare v0.4.0: Updated to blade-ink v0.3.0

Update to blade-ink engine v0.2.0

- v0.2.0

- Added commands to load/save the game.
- Updated blade-ink to v0.1.2

Updated blade-ink engine to v0.1.1