Merge pull request #22 from open-source-contributions/test_enhancement

Upgrade PHPUnit and some testing stuffs

Add handling of deleted customer groups via the V2 API

Merge pull request #20 from ShoppinPal/fix-inventory-version

Workaround for Vend removing the inventory version in the versions endpoint

Add dispatched success status

Add dispatched status

Properly fix version check helper, add tests for it

Fix version check helper

Merge pull request #19 from ShoppinPal/add-version-compare-helper

Add helper method to compare versions returned from the api to already retrieved versions

Merge pull request #17 from ShoppinPal/brand-get-method

Brand getter method added

Fix typo in the V2 versions entity for productType