Catch all exceptions and bring down rack server
Add Media type to support adding video and audio
Merge branch 'video-directive'
Use langage passed into #code to set highlighting. Helps with shorter snippets
Merge pull request #2 from jleo3/config_slide

Add defaults method to presentation
Fix defaults not getting to grouped slides
Require all code be in a code folder. Add ability to add custom paths; still requires code folder
Add creation of new audio, video, code folders on creation
Add support for local media files
Merge branch 'master' of https://github.com/jleo3/slide_hero