charge_stick possible minor bug

``` c
self->s.pos.trDelta[0] += vNor[0]*(tN[0]*(((float)Q_irand(1, 10))*0.1));
self->s.pos.trDelta[1] += vNor[1]*(tN[1]*(((float)Q_irand(1, 10))*0.1));
self->s.pos.trDelta[2] += vNor[1]*(tN[2]*(((float)Q_irand(1, 10))*0.1));
```

specifically vNor[1] usage
need to investigate further
