applied suggestions

Author: StefanSpieker

core/src/main/resources/lib/form/number.jelly

@@ -66,7 +66,7 @@ THE SOFTWARE.
     </st:attribute>
     <st:attribute name="step"> <![CDATA[
       The step size of the @value. The default is 1. This becomes the @step of the <input> tag.
-      The step should be an integer.
+      The step should be an integer when using any of the validating @clazz values.
       Otherwise the spinner of the input will change the field to non integer values.
       ]]>
     </st:attribute>