20120730
========

- 1.4.9. had still a bug: when the disable_delete method of 
  households.Household, courses.CourseProvider and jobs.JobProvider 
  didn't yet correctly skip the :meth:`lino.Lino.is_imported_partner` 
  test. 
  Very subtle, but it caused watch_tim to fail when trying to 
  re-convert the two Companies that had become Households.

Don't want to cancel release 1.4.9 because it has been downloaded 
over 40 times (probably just some robots, but anyway).
So a quick bugfix release 

About version numbering.
Should I add a new global variable :attr:`lino.__release__` and call it 
1.4.9.2 instead?
--> No. The version number doesn't reflect whether a database migration 
is required or not. Applications just add an empty migration step 
if there's no migration needed.



- "Ich möchte eine Nachricht in Historik bei einer Person. 
  Lino will nicht und gibt an "Internal Server Error"

  --> Stimmt. Man kann seit der 1.4.8 *überhaupt nichts* löschen.
  
  Auf dem Server kommt dann folgender Traceback::
  
    'WSGIRequest' object has no attribute 'subst_user'
    Request Method: DELETE
    
  Ist doch immer wieder erstaunlich, was für tolle Fehler es schaffen,
  unbemerkt durchzuschlüpfen.
    

:lino:`/releases/1.4.10`.


Worked on :mod:`lino.apps.presto`: 


- blogs.Entry : renamed field `subject` to `title`, added a field `summary`
- presto.fixtures.tim2lino