[MacPorts] #13620: update istumler to version 98

[MacPorts]

#13620: update istumler to version 98
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 Reporter:  pvarga at pvrg.net  |       Owner:  macports-tickets at lists.macosforge.org
     Type:  enhancement      |      Status:  new                                  
 Priority:  Normal           |   Milestone:  MacPorts base enhancements           
Component:  ports            |     Version:  1.6.0                                
 Keywords:                   |  
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 the patch below updates aqua/istumbler/Portfile to version 98. I could not
 find the checksums on istumbler.net, so calculated them.

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/13620>
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