Update for Laravel 5.8 (botman#31)

Update BotManCacheClear.php

Add botman:cache:clear command (botman#26)

Update composer.json

Update BotManTester.php

Add branch alias

Apply fixes from StyleCI (botman#20)

Update composer.json

Merge pull request botman#18 from christophrumpel/feature/addTemplate…

…Assertions

Add new template-in assertions and tests

Fix method to work for template name and data (botman#11)