create display functionality for file attachments / media files

The main display controller is /system/application/controllers/parse.php. This includes URL routing, and all display preparation to render the output. This controller needs a method to properly display embedded media, or links to downloadable files, determined by MIME type. The function _attachment_info() fetches all files attached th the current url, and creates an array with the appropriate info.

This task is to use the media helper functions in /system/application/helpers/image_helper.php to help add code to the default theme templates (/system/application/views/themes/simple_em) to display the various media types. You may need to modify or add functions to the image helper.