fixed problem with unicode characters in names when checking office availability for daily planning

smash/web/models/worker.py

@@ -185,7 +185,7 @@ class Worker(models.Model):
             start_date = start_date.replace(hour=0, minute=0, second=0)
             end_date = start_date + datetime.timedelta(days=1)
 
-        office_availability = OfficeAvailability('{} {}'.format(self.first_name, self.last_name), start=start_date, end=end_date)
+        office_availability = OfficeAvailability(u'{} {}'.format(self.first_name, self.last_name), start=start_date, end=end_date)
 
         #Appointments
         subject_appointments = AppointmentTypeLink.objects.filter(worker=self.id, date_when__gte=start_date, date_when__lte=end_date)