<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.github.kimkevin.slidingicontablayout">

    <application android:allowBackup="true"
                 android:label="@string/app_name"
                 android:supportsRtl="true" >
    </application>
</manifest>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.github.kimkevin.slidingicontablayout"/>

Remove unused string app_name from library
Remove unused string app_name from library