GPII-479: Adding tests for audioManager

Adding a single test script with tests for the java module and for the
settings handler who makes use of this java module.
GPII-479: Adding tests for androidSettings

Adding a single test script with tests for the java module and for the
settings handler who makes use of this java module.
Merge branch 'master' into GPII-479
GPII-479: Adding tests for persistentConfiguration

Adding a single test script with tests for the java module and for the
settings handler who makes use of this java module.
GPII-490: Handling the region code when setting the language
Merge remote-tracking branch 'javihernandez/GPII-479'