Fixed selection issues that were probably introduced by the merge from the

toolbar branch.

system/fluents.py

@@ -119,8 +119,7 @@ class FluentApp:
             toolbar_state = self._plot_toolbar.get_mode()
             window.remove(self._plot_toolbar)
         else:
-            "Setting DEAULT in fluents"
-            toolbar_state = "DEFAULT"
+            toolbar_state = "default"
         
         if view:    
             self._plot_toolbar = view.get_toolbar()

system/project.py

@@ -25,12 +25,12 @@ class Project:
         
     def add_selection_observer(self, observer):
         self._selection_observers.append(observer)
-        observer.selection_changed(self.get_selection())
+        observer.selection_changed(None, self.get_selection())
 
     def notify_selection_listeners(self, dim_name):
         """Notifies observers"""
         for observer in self._selection_observers:
-            observer.selection_changed(self.get_selection())
+            observer.selection_changed(dim_name, self.get_selection())
 
     def add_dataset_observer(self, observer):
         self._dataset_observers.append(observer)

system/selections.py

@@ -139,7 +139,7 @@ class DimListController:
                 values = (selection.title, selection, dataset.get_dim_name(0))
                 self.selstore.insert_after(i, None, values)
 
-    def selection_changed(self, selection):
+    def selection_changed(self, dim_name, selection):
         """Callback function from Project."""
 
         for dim in selection.dims():