Need Epos 3 and Shine 4 testers for improved front light control on KOReader

Hi all,

I've been working on a pull request to KOReader's LuaJIT launcher to add support for the Tolino Shine 4, as well as pulling the light control originally meant for the Epos 3 (PR #520) and adapting it to work on all Tolino B300 (Shine 4/Vision 6/Epos 3) devices.

The pull request can be found here: https://github.com/koreader/android-...ncher/pull/568

Anyone with a Shine 4 or an Epos 3 who can help with testing will be appreciated.

As of current I had to walk back support on Shine 4 and Epos 3 in the PR, but I can go back a commit to have them back once everything is confirmed working.