discourse/discourse — pull request #1049 by ZogStriP (2013-06-19 20:47:29+00:00)
Title: Admin alerts

Continuing work on [Image Optimisation](http://meta.discourse.org/t/image-optimisation-work-in-progress/6013)

This adds two admin checks
- [x] s3: warns admins whenever they enabled file uploads to S3 but forgot a setting
- [x] image magick: warns admins whenever they enabled thumbnails creation but Image Magick isn't installed