Fix package name

Author: manuquentin

android/src/main/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.wazo.callkeep">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="io.wazo.callkeep">
 
     <uses-permission android:name="android.permission.CALL_PHONE" />
 </manifest>