The older versions of the plugin caused problems building with newer
NDK versions due to a lack of MIPS support.
This also required upgrading to a version of Gradle that knows about
the Google Maven repository.
- Add copyright headers to files that did not already have them
- Update the year to the last year the file was modified in files with
existing headers.
Added a workload type to handle workloads that have both an APK with an
application and associated automation JAR. Added benchmarkpi
implementation using using the new workload.
