Plugin for Umbraco Version 7+
Please test this plugin on a local or staging enviornment. It's not quite production ready. The style and layout needs some refining.
Add the folder 'MediaExtendedSearch' from the src folder into your packages folder.
Then go to the configs folder and copy settings from the text files "Applications - Config.txt" and "Dashboard - Config.txt" into the appropriate config files.
Restart your Umbraco website. Remember to clear out your cache!