Original PR description

**In Windows, Odoo fails to write log messages to a configured logfile**

Impacted versions:
- 7.0 and above

Steps to reproduce:
1. Install Odoo in Windows
2. set `logfile = c:\odoo.log` in openerp-server.conf file
3. Run Odoo in Windows, all log messages are still written to console. 

Expected behavior:
1. Log messages should be written to the configure log file. 

The reason and the fix: 
The reason is that a code error in openrp/netsvc.py. 
The 'FileHandler`class is defined 
in`logging`module, not in`logging.handlers` module.  

The fix is to change the line from 

> handler = logging.handlers.FileHandler(logf)

to

> handler = logging.FileHandler(logf)