manager: change function's name to more appropriate

circle/manager/scheduler.py

@@ -17,7 +17,7 @@ class TraitsUnsatisfiableException(Exception):
         Exception.__init__(self, message)
 
 
-def get_node(instance, nodes):
+def select_node(instance, nodes):
     ''' Select a node for hosting an instance based on its requirements.
     '''
     # check required traits

circle/vm/models.py

@@ -680,7 +680,7 @@ class Instance(AclBase, VirtualMachineDescModel, TimeStampedModel):
 
             # Schedule
             if self.node is None:
-                self.node = scheduler.get_node(self, Node.objects.all())
+                self.node = scheduler.select_node(self, Node.objects.all())
 
             self.save()