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/applications/qcineoob/minisubtitle.py

@@ -22,6 +22,7 @@ from PyQt4.QtGui import QFrame
 from weboob.applications.qcineoob.ui.minisubtitle_ui import Ui_MiniSubtitle
 from weboob.capabilities.base import empty
 
+
 class MiniSubtitle(QFrame):
     def __init__(self, weboob, backend, subtitle, parent=None):
         QFrame.__init__(self, parent)