Fix for #469 in master branch

Sources/iOS/TextField.swift

@@ -509,7 +509,7 @@ public class TextField : UITextField {
 				placeholderLabel.frame.origin.x = width - placeholderLabel.frame.width
 			default:break
 			}
-			placeholderLabel.frame.origin.y = -placeholderLabel.frame.size.height
+			placeholderLabel.frame.origin.y = -placeholderLabel.frame.size.height + placeholderVerticalOffset
 			placeholderLabel.textColor = placeholderColor
 		} else {
 			switch textAlignment {