[Android] Buildsystem changes

[Jean-Baptiste Kempf]

Hello,

As you can see, I've changed and broken the buildsystem quite a bit :)

Because of gradle and the mess we had, and the heavy use of export
variables, a new system is in order.

compile.sh should still work and not be totally borken, but it's
possible that it is, and I will fix as soon as I can.

You can see the preview of the new system, that will not use make and
not use ant in compile-simple.sh

It is not finished yet, because of the lack of Gradle integration, but
it will come soon :)

With my kindest regards,

-- 
Jean-Baptiste Kempf
http://www.jbkempf.com/ - +33 672 704 734
Sent from my Electronic Device