Changed class definition of NBlock to inherit from NExpression instead of Node
Changed class definition of NBlock to inherit from NExpression instead of Node

chubbymaggie/crema,ainfosec/crema,chubbymaggie/crema,nivertech/crema,pietro/crema,ainfosec/crema,pietro/crema,chubbymaggie/crema,ainfosec/crema,pietro/crema,ainfosec/crema,pietro/crema,nivertech/crema,chubbymaggie/crema,nivertech/crema,nivertech/crema