Core: clarify ordering of properties with feedback from epoberezkin

Author: awwright

jsonschema-core.xml

@@ -177,8 +177,9 @@
                 <t>
                     Implied in this definition is that arrays must be the same length,
                     objects must have the same number of members,
+                    properties in objects are unordered,
                     there is no way to define multiple properties with the same key,
-                    and that mere formatting differences (indentation, placement of commas, trailing zeros) are insignificant.
+                    and mere formatting differences (indentation, placement of commas, trailing zeros) are insignificant.
                 </t>
             </section>
 
@@ -644,6 +645,7 @@ User-Agent: so-cool-json-schema/1.0.2 curl/7.43.0
                 Daniel Perrett,
                 Erik Wilde,
                 Ben Hutton,
+                Evgeny Poberezkin,
                 and Henry H. Andrews
                 for their submissions and patches to the document.
             </t>

jsonschema-hyperschema.xml

@@ -878,6 +878,7 @@ GET /foo/
                 Daniel Perrett,
                 Erik Wilde,
                 Ben Hutton,
+                Evgeny Poberezkin,
                 and Henry H. Andrews
                 for their submissions and patches to the document.
             </t>

jsonschema-validation.xml

@@ -817,6 +817,7 @@
                 Daniel Perrett,
                 Erik Wilde,
                 Ben Hutton,
+                Evgeny Poberezkin,
                 and Henry H. Andrews
                 for their submissions and patches to the document.
             </t>