Fixes #413.

Although listed as an "enhancement", the more I used it the more I started thinking of the lack of  focusing on the name tag window as it popped up as a "bug" - in the sense that it was so unintuitive that it led to lots of ruined flights as I typed in a name tag and hit "space" or "z" or something in the name tag and activated a ship control that wrecked everything.

On a side note:
Grrr.  Making Unity behave right through its undocumented implicit behaviors is such a battle.