move/resize handling again

[Matthias Clasen <maclas gmx de>]

Today I stumbled over another forgotten detail of ICCCM move/resize
handling: Section 7.7 explains how the is supposed to react to 
XMoveWindow (calculate a new reference point and place the frame
reference point there) and to XResizeWindow (keep the reference point
fixed). But it doesn't say anything about XMoveResizeWindow. Should the
wm treat this as equivalent to move, resize or to resize, move ?
Currently Metacity seems to use resize, move, but IMO move, resize makes
more sense.

Matthias