Google Services bundle IDs inconsistent (log warning)

[mcomella]

Related to #543 ?

2017-03-03 15:10:51.850 Prox Mock Location[59905] [Firebase/Core][I-COR000008] The project's Bundle ID is inconsistent with either the Bundle ID in 'GoogleService-Info.plist', or the Bundle ID in the options if you are using a customized options. To ensure that everything can be configured correctly, you may need to make the Bundle IDs consistent. To continue with this plist file, you may change your app's bundle identifier to 'com.mozilla.Prox'. Or you can download a new configuration file that matches your bundle identifier from https://console.firebase.google.com/ and replace the current one.

Notes:

• You have to specify explicit bundle IDs that can use the Google Services API key
• We have two schemes – *.MockLocation and *.CurrentLocation – how does this work with one GoogleServices file?