Don't setLevel on the library logger

Fixes #228. Libraries should attach a NullHandler and leave the level
at NOTSET so applications control verbosity; setLevel(ERROR) here
silently discarded log records regardless of the app's root logger
configuration. __main__.py already configures its own logger for CLI
use and is unaffected.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: derek73

nameparser/util.py

@@ -4,7 +4,6 @@
 # http://code.google.com/p/python-nameparser/issues/detail?id=10
 log = logging.getLogger('HumanName')
 log.addHandler(logging.NullHandler())
-log.setLevel(logging.ERROR)
 
 
 HumanNameAttributeT = Literal['title', 'first', 'middle', 'last', 'suffix', 'nickname', 'surnames']