Merge branch '2.13' into 2.14

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -19,7 +19,7 @@ JSON library.
 #684: Add "JsonPointer#appendProperty" and "JsonPointer#appendIndex"
  (contributed by Ilya G)
 
-2.13.1 (not yet released)
+2.13.1 (19-Dec-2021)
 
 #713: Incorrect parsing of single-quoted surrounded String values containing double quotes
  (reported by wcarmon@github)