Fix uploading files containing a # in the path for webdav
Fix error log spam

Regression from e002b7242cb19a0e028d325cd64b57e67dc48108
Merge pull request #7970 from owncloud/webdav-upload-hash

Fix uploading files containing a # in the path for webdav
Merge pull request #7969 from Xenopathic/files_external_fix

Fix error log spam
Merge branch 'master' into fs-backend-registration

Conflicts:
	apps/files_external/templates/settings.php