[pkg-fgfs-crew] flightgear 3.4 packaging

[Rebecca N. Palmer]

>> Sync request filed as LP#1423380.
> I see there's at least progress on that LP bug.
They were synced before freeze, which is what counts in Ubuntu; they 
were caught in an openscenegraph transition, but this now appears fixed.

Upstream bug-fix-only releases (i.e. the proposed 3.4.1) are generally 
allowed in Ubuntu for most of the freeze.