Point apps to the new maintenance app

apps/document_indexing/__init__.py

@@ -9,7 +9,7 @@ from django.db.models.signals import post_save, pre_delete, post_delete
 from navigation.api import (register_top_menu, register_sidebar_template,
     bind_links, Link)
 
-from main.api import register_maintenance_links
+from maintenance.api import register_maintenance_links
 from documents.models import Document
 from metadata.models import DocumentMetadata
 from project_setup.api import register_setup

apps/documents/__init__.py

@@ -8,7 +8,8 @@ from common.utils import validate_path, encapsulate
 from navigation.api import (bind_links, register_top_menu,
     register_model_list_columns,
     register_sidebar_template, Link)
-from main.api import register_diagnostic, register_maintenance_links
+from diagnostics.api import register_diagnostic
+from maintenance.api import register_maintenance_links
 from history.permissions import PERMISSION_HISTORY_VIEW
 from project_setup.api import register_setup
 from acls.api import class_permissions

apps/ocr/__init__.py

@@ -11,7 +11,7 @@ from django.db.utils import DatabaseError
 
 from navigation.api import bind_links, register_multi_item_links
 from documents.models import Document, DocumentVersion
-from main.api import register_maintenance_links
+from maintenance.api import register_maintenance_links
 from project_tools.api import register_tool
 from acls.api import class_permissions