fixed bug in IDF.removeidfobject()
fixed bug in IDF.removeidfobject()

jamiebull1/eppy,jamiebull1/eppy,santoshphilip/eppy,eayoungs/eppy,santoshphilip/eppy,jamiebull1/eppy,santoshphilip/eppy,pachi/eppy,pachi/eppy,eayoungs/eppy,eayoungs/eppy,pachi/eppy