A quick hack to use JRuby with Android processing.
At the moment it expects a processing sketch with two methods: rsetup which
is the ruby equivalent of setup() and rdraw which is the normal draw()
method.
Copy a script (cf. assets/bird.rb) to /sdcard/jruby/processing.rb and run the
app.
You might need to modify the dx script as described in the Ruboto IRB readme.
$ cp local.properties.EXAMPLE local.properties
$ vi local.properties
$ ant debug
$ adb install -r bin/ruboto-processing-debug.apk