Try utf-8 first when decoding text

There is a chance that utf-8 encoded text may be decoded
successfully but wrongly as ascii. UTF-8 instead should always be
able to decode ascii successfully, so let's try UTF-8 first.

Fixes: #211
Signed-off-by: NAndrea Frittoli <andrea.frittoli@gmail.com>

sync/sync.py

@@ -186,7 +186,7 @@ def transform_doc(doc, source_folder, target, target_folder, header,
     return target
 
 
-def decode(s, encodings=('ascii', 'utf8', 'latin1')):
+def decode(s, encodings=('utf8', 'latin1', 'ascii')):
     for encoding in encodings:
         try:
             return s.decode(encoding)