- upgrade to version 0.4.8

Mostly rename WARN -> WARNING
Other misc tweaks
Update tests (not in original patch)

Update to try UDP, if that fails, try TCP.

Syslog uses UDP (SOCK_DGRAM)

Removing locking are findCaller() calls as the implementation using
sys._getframe() is thread-safe.

Changes reviewed by Vinay.

should copy the handlers list because it's being modified by the loop.

Fix pychecker warnings, port arg was unused (it was always the default)
Need a global statement for _listener

Fix pychecker warnings, remove unused imports and rename root

defaults dictionary parameter which is passed to ConfigParser.

http://www.red-dove.com/python_logging.html.