Update 0.4

Finally here! This update introduces the Deathclaw as a new contract to tackle, along with several general improvements. While this is a relatively small update, the delay was due to the extensive work on the 0.5 update, which turned out to be exceptionally large. The 0.5 update is currently available on my Patreon, or you can wait until the next public release. Thank you for being so patient!