OF-2030: Remove unused & incorrect code
This removes an unused artifact of FMUC development. The code doesn't do what the name of the signature suggests.
OF-2024: Fix favicons on admin console
Openfire loads the resource from the remote server, then tries to determine if its binary content is an image. Sadly, natively, Java's ImageIO implementation does not support ICO content. This commit adds a third party plugin that adds such support.
