This is the latest version of the plugin supported by the Gradle version
in use at the moment (7.6).
Note that this also upgrades the R8 optimizer to a version (4.0.48) that
now uses "full mode" optimization by default.
This also splits off Android projects to run under Java 11 (Gradle
plugin requirement) while the other projects continue to run under Java
8.
Updates include:
* Build file and dependency updates
* Correcting the gradle wrapper for the clientcache example
* Lint fixes (including making AsyncTask subclasses static)
* Dropping the m-prefix from member variables
* Fixing the code indentation
* Fixing and enabling proguard for the routeguide example.
Terry Wilson
Carl Mastrangelo
Jorg Heymans
Eric Gribkoff