Now that we've stopped including the default play services
Now that we've stopped including the default play services

It looks like the separated files for 8.1.0 are not available.
I do have 8.3.0 in my local SDK install, so let's switch to that instead.

To answer the question from
https://github.com/shankari/e-mission-data-collection/commit/242cd2d6d81ee3eb7668f5f4eadf1d0810d081b5

Contrary to the documentation,
https://developers.google.com/android/guides/setup#add_google_play_services_to_your_project
the local SDK install has separated files only from 8.3.0

```
bash-3.2$ ls /Users/shankari/Library/Android/sdk/extras/google/m2repository/com/google/android/gms/play-services/
3.1.36/                  4.4.52/                  7.8.0/
3.1.59/                  5.0.89/                  8.1.0/
3.2.25/                  6.1.11/                  8.3.0/
3.2.65/                  6.1.71/                  maven-metadata.xml
4.0.30/                  6.5.87/                  maven-metadata.xml.md5
4.1.32/                  7.0.0/                   maven-metadata.xml.sha1
4.2.42/                  7.3.0/
4.3.23/                  7.5.0/
```

```
bash-3.2$ ls /Users/shankari/Library/Android/sdk/extras/google/m2repository/com/google/android/gms/play-services-auth/
8.3.0                   maven-metadata.xml.md5
maven-metadata.xml      maven-metadata.xml.sha1
```

e-mission/cordova-jwt-auth,e-mission/cordova-jwt-auth