fuse.py: Change the criterion to decide information on which sample is chosen

Previously, the informations coming from the best top were kept.
However we could have a sequence in the top 1, with few reads, in a poorly segmented dataset that
was preferred over a top 2 sequence with lots of reads in a highly segmented dataset.

Now we just take into account the number of reads, by assuming with the higher number
of reads we should have the higher reliability. This should be a better criterion than the previous
one (wishful thinking).

tools/fuse.py

@@ -106,7 +106,7 @@ class Window:
                                  myList)
                     
         #keep other data who don't need to be concat
-        if other.d["top"] < self.d["top"] :
+        if other.d["reads"][0] > self.d["reads"][0] :
             for key in other.d :
                 if key in myList :
                     obj.d[key] = other.d[key]