Clean and rename before we debug.

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

sysout to the rescue!
Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>
Fix the bug with the sparse version of Jonker-Volgenant algo.

In the augmentation phase, we need to retrieve the row of a certain
column (you don\t have to do that with the non sparse version). We were
looking linearly, stupidly, but we returned the index instead of the
index of index.
Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>