[FIXED JENKINS-21280] Update usage statistics opt out

Empirically, emulator version 22.3.0 installed via Android Studio 0.4.0
requires pingId=... to opt out. pingOptIn=false, as previously
implemented is not sufficient.
Merge pull request #30 from matthewlmcclure/JENKINS-21280

[FIXED JENKINS-21280] Update usage statistics opt out