Fixed most input validation bugs, and did too many improvements to remember. Did I mention that I am typing these words with my hands?

testing/testdata.yml

@@ -3,17 +3,17 @@
 title: Sample Text
 openingText: "{}\nsample text"
 startLevel: testing/test1.yml
-singletons:
-  - !NPC
-    name: follower
-    description: a follower
-    location: [0, 0]
-    behaviors:
-        go: [-1, follow]
-        arrive: [-1, follow]
-    customValues:
-        follow:
-            distance: 2
-            isFollowing: True
-            target: You
+#singletons:
+#  - !NPC
+#    name: follower
+#    description: a follower
+#    location: [0, 0]
+#    behaviors:
+#        go: [-1, follow]
+#        arrive: [-1, follow]
+#    customValues:
+#        follow:
+#            distance: 2
+#            isFollowing: True
+#            target: You