Rename solds to balances.

accountant/models/accounts.py

@@ -41,8 +41,11 @@ class Account(db.Model):
         )
 
     def solds(self):
-        """Return the solds of this account."""
+        """Return the balances of this account."""
-        # TODO Alexis Lahouze 2017-05-04 Rename to "balances"
+        return self.balances()
+
+    def balances(self):
+        """Return the balances of this account."""
         return db.session.query(
             db.func.sum(Operation.value).label("future"),
             db.func.sum(