Complete conversion of download views to CBV views using django-downloadview.

This also removes dependency on the filetransfers library.

mayan/apps/ocr/apps.py

@@ -3,7 +3,6 @@ from __future__ import unicode_literals
 import logging
 
 from kombu import Exchange, Queue
-import sh
 
 from django.apps import apps
 from django.db.models.signals import post_save
@@ -29,9 +28,6 @@ from .links import (
     link_document_type_submit, link_entry_list
 )
 from .permissions import permission_ocr_document, permission_ocr_content_view
-from .settings import (
-    setting_pdftotext_path, setting_tesseract_path
-)
 
 logger = logging.getLogger(__name__)
 

mayan/apps/ocr/parsers.py

@@ -11,7 +11,6 @@ import subprocess
 
 from django.utils.translation import ugettext_lazy as _
 
-from common.settings import setting_temporary_directory
 from common.utils import copyfile, fs_cleanup, mkstemp
 
 from .exceptions import ParserError, NoMIMETypeMatch

mayan/apps/ocr/tests/test_parsers.py

@@ -1,11 +1,8 @@
 from __future__ import unicode_literals
 
-import psutil
-
 from django.core.files.base import File
 from django.test import override_settings
 
-from common.settings import setting_temporary_directory
 from common.tests import BaseTestCase
 from documents.models import DocumentType
 from documents.tests import (