Password confirmation validator: give error message if password field does not exist and fail validation

Previously, this would just throw an exception.
Fix form.html validation of PW duplication fields

Author: ray-print

src/modules/security.js

@@ -42,7 +42,7 @@
                 confInputName = $el.valAttr('confirm') || ($el.attr('name') + '_confirmation'),
                 $confInput = $form.find('[name="' +confInputName+ '"]').eq(0);
 
-            if ( $confInput ) {
+            if ($confInput.length) {
                 conf = $confInput.val();
                 if( config.validateOnBlur && !$confInput[0].hasValidationCallback ) {
                     $confInput[0].hasValidationCallback = true;
@@ -56,7 +56,9 @@
                     });
                 }
             } else {
-                alert('Could not find an input with name "'+confInputName+'"');
+                $.formUtils.warn('Password confirmation validator: could not find an input ' +
+                  'with name "'+confInputName+'"');
+                return false;
             }
 
             return value === conf;

test/form.html

@@ -233,17 +233,19 @@
     </form>
     <hr />
     <form id="form-b">
+        <h4>Validate on submit</h4>
         <div class="form-group">
             <label class="control-label">Test</label>
             <input name="test" data-validation="number" type="text" />
         </div>
         <div class="form-group">
             <label class="control-label">Password</label>
-            <input name="pass" data-validation="confirmation" type="password" />
+            <input name="pass" type="password" />
         </div>
         <div class="form-group">
             <label class="control-label">Password again</label>
-            <input name="pass_confirmation" type="password" />
+            <input data-validation-confirm="pass" type="password"
+                   data-validation="confirmation" />
         </div>
         <p>
             <input type="submit" class="button">