Chaquopy: Python 2 for Android

Aug 23, 2018

Demo app:
* Target Android Studio 3.1.4.
* Correct caption mistake.

SDK:
* Android Gradle plugin version 3.2 is now supported, and version 2.3 is no longer supported.
* Add resource module.
* Remove broken select.kevent/select.kqueue API.
* Set HOME environment variable if the system hasn’t already done so.
* Implement importlib.abc.InspectLoader.get_code: this allows runpy.run_module to be used.