Fix missing legend file; fix url of online manual

gui/cadbiom_gui/gt_gui/chart_misc_widgets.py

@@ -320,7 +320,11 @@ class LegendWindow(object):
         self.win.set_position(gtk.WIN_POS_CENTER)
         self.win.connect("destroy", self.on_destroy)
         image = gtk.Image()
-        image.set_from_file("cadbiom_gui/gt_gui/legend.png")
+        template = pkg_resources.resource_filename(
+            __name__,
+            "legend.png"
+        )
+        image.set_from_file(template)
         image.show()
 
         self.win.add(image)

gui/cadbiom_gui/gt_gui/charter.py

@@ -618,7 +618,7 @@ class Charter(object):
         """
         Doc
         """
-        url = 'doc/manual/manual.html'
+        url = 'http://cadbiom.genouest.org/cw_support.html'
         webbrowser.open(url)
         return