Welcome Message (contactRelationUpdate)

[xippios]

Original Issue: botman/botman#970

• BotMan Version: 2.4.1
• PHP Version: 7.3.1
• Messaging Service(s): BotFramework (Skype), Version 1.1.1
• Cache Driver: file

Description:

Unable to trigger a Welcome Message using the the event fucntion ´on´ after adding my Bot in Skype. The propper event that should be fired is called contactRelationUpdate.

Steps To Reproduce:

Add to ´routes/botman.php´

$botman->on('contactRelationUpdate', function($payload, $bot) {
    $bot->reply('Thanks for adding me :)');
});

Add your Skype Bot in Skype.