I have it on good faith that DvTonder will be releasing a play store version that works on 4.1.2... It's in testing now. Also, the version I posted isn't quite right, hence a three-way collaboration to iron it out.
TL;DR? Just wait a day or two
definitely looking forward to the 4.1.2 release and appreciate yours and dvtonders efforts. will keep an eye open for the play store release.