Support for PHP 8.x

Merge pull request #24 from kilerpl/php8.x

composer for php8.x

better handling 'content-type' header

fix - handling 'content-type' header

Changes in exception handling messages

Merge pull request #18 from FreshMail/modification-in-exception-messages

some modification in exception messages

Update guzzle and monolog packages versions

monolog/monolog updated to 2.3.2
guzzlehttp/guzzle updated to 7.3.0

Support for async api files

• support for async api files
• better error informations

API Client V3

Merge pull request #10 from FreshMail/feature-APPDEV-5347

New version of API Client V3

Authorization by token

v2.0.2

Merge pull request #9 from FreshMail/feature-add-authorization-by-bea…

fix php5.3 compatibility

Merge pull request #7 from QmarXX/patch-for-php53

Replace [] with array() for php 5.3 compatibility

refactorization, PSR-0, PSR-2, composer support

thanks to @adam187

v1.0

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