Finally, after weeks of fighting with the new OSX Github client, I went back to the old classic command line system, and finally managed to get my stuff in github ! (but I'm also not an expert on Github, so for sure my mistakes)
It's not yet perfect, the "doc" directory is missing, my "web" directory is on the server (despite of the .gitignore file), tabs are all messed up in the source, but if you want to grab the last version, and play with it, you can grab it now.
As you'll notice, I pushed my dev 0.9.1 version, which includes some bugfix, and some small features, see the Changelog for more details. It's still a dev version, but stable enough.
Last point, I got lots of email about Alex4 not working : this is due to the ongoing maintenance on the TapJS website (Alex4 assets are now missing from the server, and the administration console is unavailable), and I guess it should be back to normal I guess in the few hours/days ?