Issue #15: Simplified exception handling.

wantzel.py

@@ -46,12 +46,8 @@ class Utils(object):
         with open(LOG_FILE, 'a') as file_handle:
             try:
                 file_handle.write("%s: %s\n" % (actual_time, message.encode("utf-8")))
-            except Exception:
-                file_handle.write("%s: Erreur de log\n" % actual_time)
-                try:
-                    file_handle.write("%s: %s\n" % (actual_time, message))
-                except Exception:
-                    file_handle.write("%s: Seconde erreur de log\n" % actual_time)
+            except UnicodeDecodeError:
+                file_handle.write("%s: %s\n" % (actual_time, message))
 
     @classmethod
     def debug(cls, message):