Fix --spooler-ordered, was actually reverse ordered.

This is what I get in my log:

```
adding to spooler: test(x=1)
adding to spooler: test(x=2)
[cut]
adding to spooler: test(x=15)
[cut]
I'm test(): x=15
Tue Jun 25 16:53:42 2013 - {'spooler_task_name': 'uwsgi_spoolfile_on_yoda.techtemple.org_13686_2_0_1372172017_59555', 'x': '15', 'ud_spool_func': 'test', 'ud_spool_ret': '-2'}
I'm test(): x=14
Tue Jun 25 16:53:42 2013 - {'spooler_task_name': 'uwsgi_spoolfile_on_yoda.techtemple.org_13686_2_0_1372172017_59451', 'x': '14', 'ud_spool_func': 'test', 'ud_spool_ret': '-2'}
[cut]
I'm test(): x=1
Tue Jun 25 16:53:42 2013 - {'spooler_task_name': 'uwsgi_spoolfile_on_yoda.techtemple.org_13686_2_0_1372172017_57817', 'x': '1', 'ud_spool_func': 'test', 'ud_spool_ret': '-2'}
```