+ Added http\Client\Curl\User interface for userland event loops
+ Added http\Url::IGNORE_ERRORS, http\Url::SILENT_ERRORS and http\Url::STDFLAGS
+ Added http\Client::setDebug(callable $debug)
+ Added http\Client\Curl\User interface for userland event loops
+ Added http\Url::IGNORE_ERRORS, http\Url::SILENT_ERRORS and http\Url::STDFLAGS
+ Added http\Client::setDebug(callable $debug)