Easy spacing fixes, trailing stuff

Remove useless trailing \
Remove trailing spaces
Add missing empty lines

autopep8 -ir -j2 --select=E301,E302,E502,W291,W293,W391 .

Diff quickly checked.

weboob/tools/parsers/iparser.py

@@ -54,6 +54,7 @@ class IParser(object):
         p = re.compile(r'<.*?>')
         return p.sub(' ', data).strip()
 
+
 class RawParser(IParser):
     def parse(self, data, encoding=None):
         return data.read()