Remove app top level star imports

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/document_indexing/apps.py

@@ -16,7 +16,7 @@ from mayan.apps.common.menus import (
     menu_setup, menu_tools
 )
 from mayan.apps.documents.signals import post_document_created, post_initial_document_type
-from mayan.apps.navigation import SourceColumn
+from mayan.apps.navigation.classes import SourceColumn
 from mayan.celery import app
 
 from .handlers import (

mayan/apps/document_indexing/links.py

@@ -2,7 +2,8 @@ from __future__ import unicode_literals
 
 from django.utils.translation import ugettext_lazy as _
 
-from mayan.apps.navigation import Link, get_cascade_condition
+from mayan.apps.navigation.classes import Link
+from mayan.apps.navigation.utils import get_cascade_condition
 
 from .permissions import (
     permission_document_indexing_create, permission_document_indexing_edit,

mayan/apps/document_indexing/models.py

@@ -14,7 +14,7 @@ from mptt.models import MPTTModel
 from mayan.apps.acls.models import AccessControlList
 from mayan.apps.documents.models import Document, DocumentType
 from mayan.apps.documents.permissions import permission_document_view
-from mayan.apps.lock_manager import LockError
+from mayan.apps.lock_manager.exceptions import LockError
 from mayan.apps.lock_manager.runtime import locking_backend
 
 from .managers import (

mayan/apps/document_indexing/tasks.py

@@ -5,7 +5,7 @@ import logging
 from django.apps import apps
 from django.db import OperationalError
 
-from mayan.apps.lock_manager import LockError
+from mayan.apps.lock_manager.exceptions import LockError
 from mayan.celery import app
 
 from .literals import RETRY_DELAY