Issue #3190343: Rewrite module to make use of better maintained TL library (janhenkes/teamleader-php-sdk)
Because the PHP library used in the 3.x branch is not maintained it seemed better to refactor the module to make use of anhenkes/teamleader-php-sdk.
Currently the latest version is compatible with the TL api but it is awaiting an official release so the composer version constraint is currently set at dev-master.
I suggest releasing this version as a 4.x beta