RE: libpq debug log

Hi,

I created v5 patch. Please find attached the patch.

This patch updated following items; 
- Changed "else if" to "if" in traceLog_fprintf(). This means that both PQtrace() and new trace log are set, you can
getboth log result.
 
- Implemented loglevel with enum. This change makes it easier if you want to add new log levels.
- Checked http://commitfest.cputube.org/, I modified the code slightly.

I would appreciate if you could review my latest patch.


Regards,
Aya Iwata