[ADD] Ask for confirmation when copying records

[UPD] Update web_copy_confirm.pot

[ADD] icon.png

web_copy_confirm/static/src/js/web_copy_confirm.js

@@ -0,0 +1,15 @@
+// Copyright (C) 2018 DynApps <http://www.dynapps.be>
+// @author Stefan Rijnhart <stefan@opener.amsterdam>
+// License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+openerp.web_copy_confirm = function(instance) {
+    instance.web.FormView.include({
+        on_button_duplicate: function() {
+            var self = this;
+            this.has_been_loaded.done(function() {
+                if (confirm(_t("Do you really want to copy this record?"))) {
+                    return self._super.apply(self, arguments);
+                }
+            });
+        }
+    });
+};