[enh] using the logger

searx/webapp.py

@@ -47,8 +47,11 @@ from searx.https_rewrite import https_url_rewrite
 from searx.search import Search
 from searx.query import Query
 from searx.autocomplete import backends as autocomplete_backends
+from searx import logger
 
 
+logger = logger.getChild('webapp')
+
 static_path, templates_path, themes =\
     get_themes(settings['themes_path']
                if settings.get('themes_path')
@@ -68,6 +71,8 @@ app = Flask(
 
 app.secret_key = settings['server']['secret_key']
 
+app.logger.addHandler(logger)
+
 babel = Babel(app)
 
 global_favicons = []