Fix issue 610: handle correctly end_record and end_unordered_list tokens in adm format.
diff --git a/asterix-runtime/src/main/resources/adm.grammar b/asterix-runtime/src/main/resources/adm.grammar
index 80e2cd4..06614d0 100644
--- a/asterix-runtime/src/main/resources/adm.grammar
+++ b/asterix-runtime/src/main/resources/adm.grammar
@@ -45,7 +45,7 @@
START_ORDERED_LIST = char([)
END_ORDERED_LIST = char(])
START_UNORDERED_LIST = string({{)
-END_UNORDERED_LIST = string(}})
+# END_UNORDERED_LIST = }} is recognized as a double END_RECORD token
STRING_LITERAL = char("), anythingUntil(")