v0.4.56 fixed some logging bugs

Change-Id: I517070e781e2500b62e3394dbfbd8db8b2f3b47d
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/db_base.py b/db_base.py
index 265752f..f6a5c59 100644
--- a/db_base.py
+++ b/db_base.py
@@ -141,7 +141,7 @@
 class db_base():
     tables_with_created_field=()
     
-    def __init__(self, host=None, user=None, passwd=None, database=None, log_name='db', log_level="ERROR"):
+    def __init__(self, host=None, user=None, passwd=None, database=None, log_name='db', log_level=None):
         self.host = host
         self.user = user
         self.passwd = passwd
@@ -149,7 +149,8 @@
         self.con = None
         self.log_level=log_level
         self.logger = logging.getLogger(log_name)
-        self.logger.setLevel( getattr(logging, log_level) )
+        if self.log_level:
+            self.logger.setLevel( getattr(logging, log_level) )
         
     def connect(self, host=None, user=None, passwd=None, database=None):
         '''Connect to specific data base.