Pango arabic engine

[Karl Koehler <koehler or uni-bonn de>]

Hi ,
 	
I updated and bug-fixed the arabic shaper once again;
it can be found at 
  http://titan.informatik.uni-bonn.de/~koehlerk/u/ 

Compared to CVS I did some re-arrangement; I think it
is simpler now.
The other issue is the fixed persian yeh ( many thanks
again to the xterm-team ! ).
I do hope it does not break ( I could not break it, 
but that need not meen anything ), it would be nice
if someone would check it in for me .

thank you, 

		Karl