Fixes issues for #4303

This basically involves fixing the stuff in issue #4303

Fixes #4303
Also, muh span classes.
Op 4-aug.-2014 00:20 schreef "Remie Richards" <notifications@github.com>:

> In code/game/objects/items/robot/robot_items.dm:
>
> > @@ -20,7 +20,7 @@
> >
> >  		for(var/mob/O in viewers(M, null))
> >  			if (O.client)
> > -				O.show_message("\red <B>[user] has prodded [M] with an electrically-charged arm!</B>", 1, "\red You hear someone fall", 2)
> > +				O.show_message("\red [user] has prodded [M] with an electrically-charged arm!", 1, "\red You hear someone fall", 2)
>
> I think it's in reference to the for() loop and show_message()
>
> Considering visible_message() is how we do things these days.
>
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