Updated outdated dependencies

This release updates all out-of-date dependencies and as a result drops support for <PHP 7.2

v1.3.0

Fixed

• php 7.2 compatibility

v1.2.0

Removed

• removed default channel selection
• removed obsolete test assertions
• removed config file

Fixed

• fixed body type php doc accept string parameters

Updated

• updated line formatting
• updated imports

v1.1.1

• Change custom grouping fields to private for constancy

v1.1.0

• Add custom grouping support

First public release

Merge pull request #2 from PallieterVerhoeven/master

Fixed allowed channels