App Icon patch revision

[Sungjin Chun]

Hi,

I've add some more modification and change structure.
appRootWindow is created for context and in window
structure, I added flag for testing whether it's icon or
not. Comments are welcome :-)

PS)
I cannot figure out why window_group. ie, app root window
is set as XDRW. In WindowMaker it just create another
app root window and use XDRW only for drawing.
Can you let me know? ( test.c )

gui-appicon.patch
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xgps-appicon.patch
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test.c
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