Minor bug: recon candidate's "id" field should return id, not name.

git-svn-id: http://google-refine.googlecode.com/svn/trunk@312 7d457c2a-affb-35e4-300a-418c747d4874

src/main/java/com/metaweb/gridworks/model/ReconCandidate.java

@@ -27,7 +27,7 @@ public class ReconCandidate implements HasFields, Jsonizable {
     
     public Object getField(String name, Properties bindings) {
         if ("id".equals(name)) {
-            return topicName;
+            return topicID;
         } else if ("guid".equals(name)) {
             return topicGUID;
         } else if ("name".equals(name)) {