add toString implementation to repository listing entries

git-svn-id: https://svn.apache.org/repos/asf/incubator/ivy/core/trunk@596215 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/ivy/core/search/ModuleEntry.java

@@ -45,4 +45,7 @@ public class ModuleEntry {
         return organisationEntry;
     }
 
+    public String toString() {
+        return organisationEntry + "#" + module;
+    }
 }

src/java/org/apache/ivy/core/search/OrganisationEntry.java

@@ -37,4 +37,7 @@ public class OrganisationEntry {
         return resolver;
     }
 
+    public String toString() {
+        return organisation;
+    }
 }

src/java/org/apache/ivy/core/search/RevisionEntry.java

@@ -53,4 +53,7 @@ public class RevisionEntry {
         return moduleEntry.getResolver();
     }
 
+    public String toString() {
+        return moduleEntry + ";" + revision;
+    }
 }