v0.2.55..v0.2.56 changeset MatchDetails.h

diff --git a/hoot-core/src/main/cpp/hoot/core/conflate/matching/MatchDetails.h b/hoot-core/src/main/cpp/hoot/core/conflate/matching/MatchDetails.h
index 633c262..5272569 100644
--- a/hoot-core/src/main/cpp/hoot/core/conflate/matching/MatchDetails.h
+++ b/hoot-core/src/main/cpp/hoot/core/conflate/matching/MatchDetails.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2015, 2017, 2018 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2017, 2018, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef MATCHDETAILS_H
 #define MATCHDETAILS_H
@@ -47,7 +47,8 @@ class MatchDetails
 {
 public:
 
-  virtual ~MatchDetails() {}
+  MatchDetails() = default;
+  virtual ~MatchDetails() = default;
 
   /**
    * Returns a map of features that went into determining this as a match and their values. The