Merge with remote:master

TODO

@@ -2,3 +2,4 @@ doc enhancement
 Limit hits/pages/downloads by rate
 Automatic tests
 Free memory as soon as possible
+Remove some IP from statistics

default_conf.py

@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 import os
 
 # Default configuration

iwla.py

@@ -240,10 +240,9 @@ class IWLA(object):
         # TODO : remove return
         #return
 
-        with open(filename + '.tmp', 'wb+') as f:
+        with open(filename + '.tmp', 'wb+') as f, gzip.open(filename, 'w') as fzip:
             pickle.dump(obj, f)
             f.seek(0)
-            with gzip.open(filename, 'w') as fzip:
             fzip.write(f.read())
         os.remove(filename + '.tmp')
 
@@ -485,8 +484,7 @@ class IWLA(object):
 
         if not os.path.exists(gz_path) or\
            os.stat(path).st_mtime > build_time:
-            with open(path, 'rb') as f_in:
-                with gzip.open(gz_path, 'wb') as f_out:
+            with open(path, 'rb') as f_in, gzip.open(gz_path, 'wb') as f_out:
                 f_out.write(f_in.read())
 
     def _compressFiles(self, build_time, root):