Elgg/Elgg — pull request #129 by sembrestels (2011-12-31 03:45:36+00:00)
Title: Added hook trigger to allow plugins solve problems with mime types.

OGG files are an example, their mime type is application/ogg, but they are audio, not applications.

I solved this with two hooks: https://github.com/lorea/audio_html5/commit/ad0149bc78bf67809d9c2636fe05987e2598b0c7

But one is not defined yet in Elgg and for this reason there is this pull request ;-)