TrackMate_: added code style for Eclipse code formatter.
TrackMate_: minor changes to Eclipse formatter

I don't like empty declarations to take space.
Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>
TrackMate_: add a method in semi-auto tracking to expose new spot

So that subclassers can hook to it.
Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>
Merge remote-tracking branch 'origin/track-mate' into multiviewtracker-contrib
MaMuT_: use the source index for the semi-auto tracking.

From now on, any source can be used for semi-automatic tracking, not
just the first one. The source that will be used is the one the spot
given at construction was created on.
Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>