Merge pull request #17 from bbergquist0930/fixsdids

The list of reserved SD-ID's was incorrect.  Changed to the correct list

Author: Cyrille Le Clerc

src/main/java/com/cloudbees/syslog/SDElement.java

@@ -35,9 +35,8 @@ public class SDElement implements Serializable {
      */
     public static final String[] RESERVED_SDID = new String[]{
         "timeQuality",
-        "tzKnown",
-        "isSynced",
-        "syncAccuracy"
+        "origin",
+        "meta"
     };
 
     public SDElement(String sdID) {