This is just a clone of the official janrain repo with only addition being the build.gradle file.
'me.dm7.jrengage.android:jrengage:3.4'
<dependency>
<groupId>me.dm7.jrengage.android</groupId>
<artifactId>jrengage</artifactId>
<version>3.4</version>
</dependency>
<dependency org="me.dm7.jrengage.android" name="jrengage" rev="3.4"/>
"me.dm7.jrengage.android", "jrengage", "3.4"