How I publish my game:
1. I keep my games in Dropbox so that I can work on my game anywhere
2. I export to Cocoon.js, use PNG compression on Brute and Minify the game
3. Go to Ludei > Dev Portal and upload the zip file of my game and Compile the project
4. They email me the zip of a test file APK and unreleased final APK
5. I have to use CMD prompt and Sign the unreleased final file using the tutorial on Scirra on signing APKs
6. After I sign the APK, I upload this to Google Play Publish
7. On Google Play Publish, I also upload screenshots, descriptions, etc... and hit Publish!