You can find the code at
https://github.com/majimus/majimusLifx , this is really beta and ONLY for UI7.
I've been using it as I develop, but at this point there is still a lot of work to be done so.
To install:
1. Upload all files to your vera (running UI7)
2. Add a new device with device type = urn:schemas-majimus-com:device:Lifx:1
3. The upnp device filename = D_MajimusLifx.xml
4. The upnp implementation filename = I_MajimusLifx.xml
You will probably need to reload the interface for the new device to appear then u click the settings section for the configuration and you add your Lifx ApiKey and the id (the format for the id is "id:xxxxxx" without the quotes) of the light in question.
The steps will need to be adjusted for each light you want to add (you can probably get away with putting "all") as the id and controlling all your lights at once.
Going forward I will move this to a parent->child setup since most people will be controlling all lights with the same token, as it is you can control lights from different accounts.
I'm happy to make changes based on feedback as time permits (but I do have a day job so you know how it goes)
-Majimus