automatically open tags for all Components

[Juergen Donnerstag]

we have several components which use

        @Override
        protected void onComponentTag(final ComponentTag tag)
        {
                if (tag.isOpenClose())
                {
                        tag.setType(TagType.OPEN);
                }
                super.onComponentTag(tag);
        }

to convert the Component's tag open-close to open-body-close. I wonder
whether we should make this the default. It's usually required anyway
and it shouldn't harm any component (incl <input>).

-Juergen