TrackScheme: Change the component order of the side toolbar.

Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>
Release v2.6.3

* In the table exports, spots and links are sorted by track then by
frame.

* TrackMate now works with 1D images: image sequences made of single
line or single column frames.

* Fix a bug that caused off behavior when the manual tracking plugin was
launched twice in the same Fiji session.

* The semi auto tracker has a new parameter that limits the number of
frames it processes.

* TrackScheme: A tooltip displays the track name and the frame when
lingering over the row or column headers. This is made to improve
orientation when unzoomed.

* TrackScheme: Change the order of components in the side toolbar.

Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>