allow custom validation messages without pattern

src/main.js

@@ -91,7 +91,7 @@
                     /* falls through */
                 case "checkbox":
                     if (required && !this.get("checked")) {
-                        errors.push("field is required");
+                        errors.push(this.get("title") || "field is required");
                     }
                     break;
 
@@ -116,13 +116,13 @@
                             msg = this.get("title") || "illegal value format";
                         } else {
                             regexp = patterns[type];
-                            msg = I18N_MISMATCH[type];
+                            msg = this.get("title") || I18N_MISMATCH[type];
                         }
                     }
 
                     if (required && !regexp) {
                         regexp = patterns.required;
-                        msg = "field is required";
+                        msg = this.get("title") || "field is required";
                     }
 
                     if (regexp && !regexp.test(value)) {

test/forms.spec.js

@@ -88,6 +88,17 @@ describe("forms", function() {
         expect(spy).toHaveBeenCalled();
     });*/
 
+
+    it("should allow custom tooltip messages via the title attribute", function() {
+        var ValiditySpy = spyOn(window, 'Validity');
+        var form = DOM.mock("form>input[type=text name=d title=customerror");
+        DOM.find("body").append(form);
+
+        expect(form).toBeValid();
+
+        expect(ValiditySpy).toHaveBeenCalledWith(["customerror"]);
+    });
+
     it("should allow to add custom validation", function() {
         var form = DOM.mock("form>input[type=text name=d]");