adding ApplianceGroup from pipeline iPythonNotebook
adding ApplianceGroup from pipeline iPythonNotebook

nilmtk/nilmtk,mmottahedi/nilmtk,AlexRobson/nilmtk,pauldeng/nilmtk,nilmtk/nilmtk,jaduimstra/nilmtk,josemao/nilmtk,HarllanAndrye/nilmtk