Did you manage to get yours to work?
I put my version.json into my modpack.jar yet it still wont recognize that liteloader is installed.
Bare in mind i'm trying to get the same thing working as the OP. Yet I don't see any version.json that liteloader comes with considering from what I can tell it doesn't. It tells you to change entries in your own .json.
Here is my version.json file.
http://pastebin.com/D2KQHbdF
I've added it to my modpack.jar file, but when in minecraft the hotkeys program doesn't come up within controls and minecraft doesn't recognize liteloader is even installed (To my knowledge). Any help would be appreciated .
Edit: Found out the problem. Needed to replace the cascadedTweaks with tweakClass.