Hi. Big fan of your work. An easy way to create apk images is to use Monaca. If you don't feel like using it. I could do it for you (using your sources). Tell me if you are interested. Many thanks for your game!
I investigated it before answering and the main problems are that I don't know what does it do to create an app (so I can't know if it's safe for everyone to use it) and that the free license forbids "commercial use".
My game is not "commercial" but as it allows donations that could raise some license problems.
Thanks for the option but I can't take it.