Update for android 0.12, gradle 1.12 & Idea 13/14EAP

[anodynos]

Hi & thanks for this example & your blog post.

Currently I can't make the annotation processing / build.source generation to work in Idea. I tried [this](http://www.jayway.com/2012/08/31/making-androidannotations-work-with-intellij-idea/ but no luck either.

If you get any chance updating it for Idea 13 / 14EAP which needs com.android.tools.build:gradle:0.12.+ and possibly gradle 1.12. I tried to simply update the versions in build.gradle but apparently something is not running properly.

Many thanks