Bugfix for:
http://sourceforge.net/tracker/index.php?func=detail&aid=897083&group_id=43586&atid=439463
http://sourceforge.net/tracker/index.php?func=detail&aid=
1895179&group_id=43586&atid=439463
http://sourceforge.net/tracker/index.php?func=detail&aid=
1985755&group_id=43586&atid=439463
(A group wasn't immediately redrawn when it was disabled with
set(grp, MUIA_Disabled, TRUE) after the window was already open.)
Commented out optimisation which should prevent drawing of the childs of a disabled group.
Additionally: changed ULONG to IPTR for X86-64
git-svn-id: https://svn.aros.org/svn/aros/trunk/AROS@30249 fb15a70f-31f2-0310-bbcc-cdcc74a49acc