After a fair bit of web searching and hacking, the following information should enable you in the configuration of your Logitech Harmony Remote and installation of client interfacing software on Linux to update your universal remote.
These instructions were compiled using Linux Mint 17 (Qiana) x86_64 and Firefox 34 at the time of writing.
The following is a list of identified libraries and tools the subsequent software for using your Logitech Harmony Remote.