ARODataCollector apk for x86 devices

The goal of this pull request is to be able to build a version of the ARODataCollector apk for x86 devices. This is needed in order to automate battery profiling on x86 vm's.

Please bear in mind that some files added are android project files generated automatically but that should be committed to the source repo as stated in android docs, instead of regenerated as part of the build instructions.

There are more fixes to be sent, but these ones had already been tested and gone through peer review so I think they are ready for the public.

Once everything is ready I'll cherry-pick the non-tuenti specific changes (none in this pull request) and send a pull request to the upstream project.

Thanks!