owncloud/core — pull request #11245 by LukasReschke (2014-09-23 08:45:16+00:00)
Title: Add a configuration switch for enabled preview mimetypes

Backport of https://github.com/owncloud/core/pull/11211 to stable7

To test:

- [ ] TXT / Image previews should work out-of-the-box
- [ ] Other previews after enabling them in config.php