Returns the version number of the API and the component.
None. The request data body is null.
Integer. The API level this server understands.
String. The exact version of the component, e.g. "3.1" for Akeeba Backup 3.1 stable.
String. The release date of the component in YYYY-MM-DD format, e.g. "2010-07-21" for July 21st, 2010.
String. If we have Akeeba Backup Professional it return "pro", otherwise "core". Since API level 320.