Creating new releases of the mode

Release steps for Processing Android.

1. Create a new tag for the version to be released, from command line. For example:

git tag -a android-412 b06a718 -m "android-412"
git push origin android-412

b06a718 would be the commit hash, but is not needed if the tag correspond to the latest commit.

2. In the releases page, change the tag of the latest release from latest to the previous tag

3. Delete the latest tag

4. Create the new release, recreating the latest tag