Does not build on Android with buildToolsVersion 25

[mo-solnet]

The latest Android Studio and Gradle require buildToolsVersion 25 and this library does not build with that version.

Scenario: A project is using this library as a dependency. The project updates to latest RN (0.47.2) as well as Android Studio 2.2.3. This library will prevent building the project because the buildToolsVersion is too low.

[nisargdesai15]

official newrelic react native agent is available https://docs.newrelic.com/docs/mobile-monitoring/new-relic-monitoring-react-native/monitor-your-react-native-application/