update credits in instruction manual
add .78 build
zh_TW.lang

This translation lang,It's okay now
Merge pull request #186 from HEYMANCXN/patch-2

Add zh_TW.lang from Heymancxn
fix language file extension
Update torque tile base block to check for missing icon maps, again,
wtf, nothing should be looking at icons on these.
add a command to disable NPC ai on a persistent per-world basis.  Should
be useful for build-worlds to disable NPC AI for setting up structures.
much work on basic town-gen.  hooks into world-gen seem to be working.
need a bit more work on biome validation.
reassign default value for factions for new players.  Was 0, now -50.
Should result in all NPCs being hostile towards players until they have
done some work to improve their standing (trading with faction-owned
traders).
Merge branch 'master' into 2.4