Issue #70: Add privacy policy
Issue #70: Add Google Analytics and update AdMob SDK
Release 0.6.0: Fix error in Lite's manifest file
Release 0.6.0: Move string keys for extras

String keys for extras are now String constants rather than string resources.
Release 0.6.0: Remove `keywords.xml`
Release 0.6.0: Remove `provider.xml`
Release 0.6.0: Remove `no_translate.xml` from main
Release 0.6.0: Entries for `premium` flavor in `android.iml`
Release 0.6.0: Remove `config.xml`
Release 0.6.0: Remove `no_translate.xml`
Release 0.6.0: Remove `provider.xml`
Release 0.6.0: Attempt to add `signingConfigs`
Release 0.6.0: Update `versionCode` and `versionName`
Release 0.6.0: Update `version_number`
Release 0.6.0: Remove IML files from repository.
Release 0.6.0: Don't explicitly reference the debug.keystore file
Release 0.6.0: Update `strings.xml`

Update copyright string in default `strings.xml` and remove unused player details.
Release 0.6.0: Default implementation of `BaseballCardProvider#getSqlHelper()`
Release 0.6.0: Ignore remaining lint errors for this release
Release 0.6.0: Use signing.properties file for the values needed to sign the APK