Schedule name is optional

For backwards compatibility the schedule name is an optional keyword in the `schedule` function.

Adjusted docs accordingly

docs/admin.rst

@@ -11,7 +11,8 @@ Successful tasks
 ----------------
 
 Shows all successfully executed tasks. Meaning they did not encounter any errors during execution.
-From here you can look at details of each task or delete them.
+From here you can look at details of each task or delete them. Use the group column to sort your results by schedule name or group id.
+The table is searchable by `name`, `func` and `group`
 
 Uses the :class:`Success` proxy model.
 

docs/schedules.rst

@@ -48,12 +48,13 @@ If you want to schedule regular Django management commands, you can use the :mod
 Reference
 ---------
 
-..  py:function:: schedule(func, *args, hook=None, schedule_type='O', repeats=-1, next_run=now() , **kwargs)
+..  py:function:: schedule(func, *args, name=None, hook=None, schedule_type='O', repeats=-1, next_run=now() , **kwargs)
 
     Creates a schedule
-    :param str name: A sensible name for your schedule
+
     :param str func: the function to schedule. Dotted strings only.
     :param args: arguments for the scheduled function.
+    :param str name: An optional name for your schedule.
     :param str hook: optional result hook function. Dotted strings only.
     :param str schedule_type: (O)nce, (H)ourly, (D)aily, (W)eekly, (M)onthly, (Q)uarterly, (Y)early or :attr:`Schedule.TYPE`
     :param int repeats: Number of times to repeat schedule. -1=Always, 0=Never, n =n.
@@ -70,7 +71,7 @@ Reference
 
     .. py:attribute:: name
 
-    A name for your schedule. Tasks created by this schedule will assume this as their group id.
+    A name for your schedule. Tasks created by this schedule will assume this or the primary key as their group id.
 
     .. py:attribute:: func
 

docs/tasks.rst

@@ -54,7 +54,7 @@ Take care that you haven't limited your results database too much and that the g
 Instead of :func:`result_group` you can also use :func:`fetch_group` to return a list of :class:`Task` objects.
 
 .. note::
-    Tasks created by a schedule, will use the schedules name as their group id.
+    Tasks created by a schedule, will use the schedule name as their group id. This enables you to browse the schedule's history.
 
 Synchronous testing
 -------------------