v0.3.1

This is actually a bigger release than the point-release numbering would imply, but it wasn't quite big enough to qualify to be v0.4.0 though. Changes include:

• Lots of new po: comments for translators
• Copyediting
• Ensure units are facing in the correct direction in more places
• Lidda gets guards on all difficulties in S04 now
• S05a, "Blowing Snow" ought to be a bit harder now
• Ensure units aren't accidentally selected by cutscenes
• More underground music in underground scenarios
• Remove deprecated recruitment AI aspects
• Clarification of what to do in S07 for players who get lost or confused
• The "eater" eats mushrooms, and the goblins try to burn down villages in S09
• Enemy units get slowed in S12, "Under Pressure" on EASY
• Celylia is magical when she advances to a Shyde, too
• Clarify what to do in S18, "The Investigation"
• A bit of extra dialogue in S20t
• The Caverns of Flame now feel more flame-y
• GO_HERE_RUNES macro text should now be less confusing for players who aren't debugging

Full Changelog: 0.3.0...0.3.1

(Note that this will be the final release on the 1.14 add-on server; all future development of this add-on will happen on the 1.16 add-on server)