We're not alone in the deep

This update is focused on stability first, and does little to change any content:

Numerous Chapter 4 Bugs:

• Wasn't properly resetting choices
• Music ended upon restart
• Poor feedback for when threats approached/withdrew

Playtester feedback for grammar/spelling
Minor usability/vocabulary improvements

I'm still working on applying playtester feedback and polishing the prose/user experience, but this update was downright necessary to catch some nasty bugs (some common, others not-so-common) which could ruin the experience.