sort collabs by id

wise-webapp/src/main/java/com/wisemapping/rest/model/RestCollaboration.java

@@ -37,10 +37,12 @@ import javax.xml.bind.annotation.XmlRootElement;
         isGetterVisibility = JsonAutoDetect.Visibility.PUBLIC_ONLY)
 public class RestCollaboration {
 
+    private long id;
     private String email;
     private String role;
 
     public RestCollaboration(@NotNull Collaboration collaboration) {
+        this.id = collaboration.getId();
         this.email = collaboration.getCollaborator().getEmail();
         this.role = collaboration.getRole().getLabel();
     }
@@ -59,6 +61,10 @@ public class RestCollaboration {
 
     }
 
+    public long getId() {
+        return id;
+    }
+
     public String getRole() {
         return role;
     }