PEP8 style fixes and other small style fixes

I used autopep8 on some files and did carefully check the changes.
I ignored E501,E302,E231,E225,E222,E221,E241,E203 in my search, and at
least E501 on any autopep8 run.

Other style fixes not related to PEP8:
* Only use new-style classes. I don't think the usage of old-style
  classes was voluntary. Old-style classes are removed in Python 3.
* Convert an if/else to a one-liner in mediawiki, change docstring style
  change to a comment something that wasn't really appropriate for a
  docstring.
* Unneeded first if condition in meteofrance

modules/hds/pages.py

@@ -30,9 +30,11 @@ __all__ = ['ValidationPage', 'HomePage', 'HistoryPage', 'StoryPage']
 class ValidationPage(BasePage):
     pass
 
+
 class HomePage(BasePage):
     pass
 
+
 class Author(object):
     (UNKNOWN,
      MALE,
@@ -45,6 +47,7 @@ class Author(object):
         self.email = None
         self.description = None
 
+
 class Story(object):
     def __init__(self, id):
         self.id = id
@@ -54,6 +57,7 @@ class Story(object):
         self.author = None
         self.body = None
 
+
 class HistoryPage(BasePage):
     def get_numerous(self):
         td = self.parser.select(self.document.getroot(), 'td.t0', 1)
@@ -89,6 +93,7 @@ class HistoryPage(BasePage):
                 yield story
                 story = None
 
+
 class StoryPage(BasePage):
     def get_story(self):
         p_tags = self.document.getroot().xpath('//body/p')
@@ -179,4 +184,3 @@ class AuthorPage(BasePage):
         if author.description.startswith(u'0 récit '):
             self.logger.warning('This author does not have published any story.')
         return author
-