Add AuthenticationServerFragment.kt

app/src/main/java/chat/rocket/android/app/AuthenticationServerFragment.kt

+package chat.rocket.android.app
+
+import android.app.Fragment
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.view.WindowManager
+import chat.rocket.android.R
+import kotlinx.android.synthetic.main.fragment_authentication_server.*
+
+/**
+ * @author Filipe de Lima Brito (filipedelimabrito@gmail.com)
+ */
+class AuthenticationServerFragment : Fragment() {
+
+    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? = inflater?.inflate(R.layout.fragment_authentication_server, container, false)
+
+    override fun onViewCreated(view: View?, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        text_server_url.setSelection(text_server_url.length())
+
+        val window = activity.window
+        window.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE)
+    }
+}
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