Hello World tutorial ==================== The purpose of this tutorial is to explain how to add our SDK as a dependency of an Android project and how to create the `Core` object that all our APIs depends on. Start by taking a look at the `app/build.gradle` file to see how our Maven repository is being set up and how to add the gradle dependency on our SDK. The user interface will only display the `Core`'s version, but in the next tutorial you will learn how to use it to login your SIP account.