Update octave to version 4.2.1
Update octave to version 4.2.1

lukesampson/scoop,vidarkongsli/scoop,reelsense/scoop,rasa/scoop,yunspace/scoop,nueko/scoop,bpollack/scoop,vinaynambiar/lukesampson-,coonce/scoop,r15ch13/scoop,Cyianor/scoop,nikolasd/scoop,toxeus/scoop,berwyn/scoop,Congee/scoop,kodybrown/scoop,rodericktech/scoop