Fix for nib2cib always using MainMenu.cib as output filename.
Fix for nib2cib always using MainMenu.cib as output filename.

Reviewed by me.

wangshijin/cappuccino,cappuccino/cappuccino,FrankReh/cappuccino,akshell/cappuccino,koamac/Cappuccino,280north/cappuccino,eventualbuddha/cappuccino,akshell/cappuccino,kidaa/cappuccino,cappuccino/cappuccino,wangshijin/cappuccino,cappuccino/cappuccino,kidaa/cappuccino,cappuccino/cappuccino,enquora/cappuccino,primalmotion/cappuccino,dgvivero/CappCoreData,kidaa/cappuccino,Dogild/cappuccino,primalmotion/cappuccino,kidaa/cappuccino,280north/cappuccino,akshell/cappuccino,AlexanderMazaletskiy/cappuccino,Dogild/cappuccino,cappuccino/cappuccino,deltaprojects/cappuccino,daboe01/cappuccino,cacaodev/cappuccino,koamac/Cappuccino,deltaprojects/cappuccino,AlexanderMazaletskiy/cappuccino,akshell/cappuccino,dgvivero/CappCoreData,koamac/Cappuccino,Dogild/cappuccino,primalmotion/cappuccino,mrcarlberg/cappuccino,280north/cappuccino,tancred/cappuccino,zittix/cappuccino,tolmasky/cappuccino,jarib/cappuccino,rgv151/cappuccino,primalmotion/cappuccino,dgvivero/CappCoreData,FrankReh/cappuccino,tancred/cappuccino,daboe01/cappuccino,enquora/cappuccino,AlexanderMazaletskiy/cappuccino,dgvivero/CappCoreData,jarib/cappuccino,tlrobinson/cappuccino,mrcarlberg/cappuccino,koamac/Cappuccino,eventualbuddha/cappuccino,Dogild/cappuccino,AlexanderMazaletskiy/cappuccino,enquora/cappuccino,krodelin/cappuccino,tolmasky/cappuccino,Dogild/cappuccino,mrcarlberg/cappuccino,cacaodev/cappuccino,zittix/cappuccino,wangshijin/cappuccino,Dogild/cappuccino,mrcarlberg/cappuccino,280north/cappuccino,rgv151/cappuccino,cacaodev/cappuccino,mrcarlberg/cappuccino,krodelin/cappuccino,deltaprojects/cappuccino,cacaodev/cappuccino,mrcarlberg/cappuccino,enquora/cappuccino,FrankReh/cappuccino,kidaa/cappuccino,mrcarlberg/cappuccino,daboe01/cappuccino,mrcarlberg/cappuccino,koamac/Cappuccino,krodelin/cappuccino,krodelin/cappuccino,Dogild/cappuccino,koamac/Cappuccino,cappuccino/cappuccino,FrankReh/cappuccino,Rosch/cappuccino,zittix/cappuccino,dgvivero/CappCoreData,rgv151/cappuccino,tancred/cappuccino,jiangshen/cappuccino,tancred/cappuccino,zittix/cappuccino,tancred/cappuccino,tancred/cappuccino,wangshijin/cappuccino,cacaodev/cappuccino,deltaprojects/cappuccino,AlexanderMazaletskiy/cappuccino,rgv151/cappuccino,daboe01/cappuccino,zittix/cappuccino,tolmasky/cappuccino,eventualbuddha/cappuccino,eventualbuddha/cappuccino,FrankReh/cappuccino,kidaa/cappuccino,enquora/cappuccino,enquora/cappuccino,daboe01/cappuccino,rgv151/cappuccino,FrankReh/cappuccino,zittix/cappuccino,primalmotion/cappuccino,FrankReh/cappuccino,FrankReh/cappuccino,rgv151/cappuccino,Rosch/cappuccino,krodelin/cappuccino,cappuccino/cappuccino,krodelin/cappuccino,krodelin/cappuccino,cacaodev/cappuccino,jiangshen/cappuccino,tolmasky/cappuccino,primalmotion/cappuccino,deltaprojects/cappuccino,280north/cappuccino,Rosch/cappuccino,wangshijin/cappuccino,wangshijin/cappuccino,Rosch/cappuccino,deltaprojects/cappuccino,daboe01/cappuccino,primalmotion/cappuccino,cacaodev/cappuccino,Rosch/cappuccino,daboe01/cappuccino,AlexanderMazaletskiy/cappuccino,zittix/cappuccino,rgv151/cappuccino,deltaprojects/cappuccino,Rosch/cappuccino,tolmasky/cappuccino,enquora/cappuccino,Rosch/cappuccino