0990ba fix #492 - ENTER finish ("run") spline tool; ESC do cancel it

1 file Authored by Rodolfo Ribeiro Gomes 4 years ago , Committed by konstantin 4 years ago ,
    fix #492 - ENTER finish ("run") spline tool; ESC do cancel it
    
    partial fix #491
    
    Besides the new key assignment, Escape now really cancels spline.
    Before this commit, it just hid the spline drawing
    (if you click 'run' toolbutton the spline appears).