[Pengfork-devel] Logging and debug facilities

[Nicolas Burrus]

I've commited a first version, please send feedback.

There is two functions, log() and debug(), the first send to syslog, the 
second to stderr. Debug level is set to -1 by default, so waiting for command 
line options (certainely this night), set PARAM_DEBUG_LEVEL = 1 in main.c for 
example.

log level parameter correspond to syslog parameters.

-- 
Nicolas