Merge: Crazy Moles with particle effects, nukes, Bézier curves and cacti disguised...

This PR adds new features to the Crazy Moles/Groundhogs game. Pretty graphical effects with particles, Bézier curves and a custom C method to display flash effects. Plus two new traps; the cactus disguised as a mole and the much awaited nuke. This PR also updates the project tools and style, fix a few annoyances and adds a basic script to stress test on Android.

The script to test on Android was an experiment with adb monkey for a future integration with Jenkins.

What is not in this PR: sounds, fullscreen on Android and other Android specific features.

Pull-Request: #1633
Reviewed-by: Lucas Bajolet <r4pass@hotmail.com>
Reviewed-by: Jean Privat <jean@pryen.org>
Reviewed-by: Alexandre Terrasa <alexandre@moz-code.org>