need to reset shift_start on control select

cmcnulty

2013-10-30 e769a7b588dde028a41cde482995601b63ad87b2

 program/js/list.js

@@ -790,8 +790,10 @@
        break;

      case CONTROL_KEY:
        if (with_mouse)
        if (with_mouse) {
          this.shift_start = id;
          this.highlight_row(id, true);
        }
        break;

      case CONTROL_SHIFT_KEY: