ArchiveUtils: Add a parser for ISO 14 digit timestamp

Author: ikreymer

src/main/java/org/archive/util/ArchiveUtils.java

@@ -258,6 +258,15 @@ public static String getLog14Date(Date date){
         return TIMESTAMP14ISO8601Z.get().format(date);
     }
 
+    public static Date parse14DigitISODate(String datetime, Date defaultVal)
+    {
+    	try {
+	        return TIMESTAMP14ISO8601Z.get().parse(datetime);
+        } catch (ParseException e) {
+        	return defaultVal;
+        }
+    }
+    
     /**
      * Utility function for creating arc-style date stamps
      * in the format yyyyMMddHHmmssSSS.