PEP8 cleanups.

mayan/apps/common/forms.py

@@ -1,6 +1,5 @@
 from __future__ import unicode_literals
 
-from operator import itemgetter
 import os
 
 from django import forms

mayan/apps/common/management/commands/runtests.py

@@ -1,7 +1,5 @@
 from __future__ import unicode_literals
 
-from optparse import make_option
-
 from django import apps
 from django.core import management
 

mayan/apps/common/widgets.py

@@ -1,7 +1,5 @@
 from __future__ import unicode_literals
 
-import os
-
 from django import forms
 from django.forms.utils import flatatt
 from django.utils.encoding import force_unicode, force_text

mayan/apps/documents/forms.py

@@ -1,7 +1,6 @@
 from __future__ import absolute_import, unicode_literals
 
 import logging
-from operator import itemgetter
 
 from django import forms
 from django.template.defaultfilters import filesizeformat

mayan/apps/documents/models.py

@@ -36,8 +36,8 @@ from .managers import (
 from .permissions import permission_document_view
 from .runtime import cache_storage_backend, storage_backend
 from .settings import (
-    setting_display_size, setting_language, setting_language_choices,
-    setting_zoom_max_level, setting_zoom_min_level
+    setting_display_size, setting_language, setting_zoom_max_level,
+    setting_zoom_min_level
 )
 from .signals import (
     post_document_created, post_document_type_change, post_version_upload

mayan/apps/ocr/backends/pyocr.py

@@ -31,7 +31,7 @@ class PyOCR(OCRBackendBase):
         logger.debug('Will use tool \'%s\'', self.tool.get_name())
 
         self.languages = self.tool.get_available_languages()
-        logger.debug('Available languages: %s',  ', '.join(self.languages))
+        logger.debug('Available languages: %s', ', '.join(self.languages))
 
     def execute(self, *args, **kwargs):
         """