dav_submission: changed some texts, after another feedback round with

manu.

dav_submission/django_project_config/settings-dav_submission.py

@@ -3,7 +3,7 @@ import os
 from django.conf import settings
 
 # UPLOAD_PATH = os.path.join(settings.BASE_VAR_DIR, 'lib', 'dav_submission', 'submissions')
-# MAX_FILES = 100
+MAX_FILES = 5
 # MAX_FILE_SIZE_MIB = 50
 # MAX_TOTAL_SIZE_MIB = 100
 # METADATA_FILE_NAME = 'metadata.txt'