Fixes 821

Reference specific version of emca262.

Author: Relequestual

jsonschema-core.xml

@@ -3221,11 +3221,11 @@ https://example.com/schemas/common#/$defs/count/minimum
             &RFC8259;
             &ldp;
             <reference anchor="ecma262"
-            target="http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf">
+            target="https://www.ecma-international.org/ecma-262/5.1">
                 <front>
-                    <title>ECMA 262 specification</title>
+                    <title>ECMA-262 5.1 edition specification</title>
                     <author/>
-                    <date/>
+                    <date month="June" year="2011" />
                 </front>
             </reference>
         </references>

jsonschema-validation.xml

@@ -1316,11 +1316,11 @@
             &RFC6901;
             &RFC8259;
             <reference anchor="ecma262"
-            target="http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf">
+            target="https://www.ecma-international.org/ecma-262/5.1">
                 <front>
-                    <title>ECMA 262 specification</title>
+                    <title>ECMA-262 5.1 edition specification</title>
                     <author/>
-                    <date/>
+                    <date month="June" year="2011" />
                 </front>
             </reference>
             <reference anchor="relative-json-pointer">