Added developmentDependency flag to Cake.Common.nuspec
Added developmentDependency flag to Cake.Common.nuspec

Relates to #895
adamhathcock/cake,patriksvensson/cake,adamhathcock/cake,daveaglick/cake,Sam13/cake,robgha01/cake,gep13/cake,ferventcoder/cake,robgha01/cake,vlesierse/cake,michael-wolfenden/cake,RehanSaeed/cake,phenixdotnet/cake,patriksvensson/cake,vlesierse/cake,thomaslevesque/cake,RehanSaeed/cake,devlead/cake,mholo65/cake,phrusher/cake,phenixdotnet/cake,cake-build/cake,gep13/cake,ferventcoder/cake,SharpeRAD/Cake,devlead/cake,phrusher/cake,Sam13/cake,SharpeRAD/Cake,michael-wolfenden/cake,daveaglick/cake,mholo65/cake,Julien-Mialon/cake,Julien-Mialon/cake,DixonD-git/cake,thomaslevesque/cake,cake-build/cake