Improved KVC mutable indexed accessors
Improved KVC mutable indexed accessors

Refactored everything away into insertObjects:atIndexes: so all the logic is in the same place
and made it so that the _insertManySEL is the preferred selector to use. If it doesn't exist it will fall back to the _insertSEL.

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