Ease the use of a custom Browser with Api and OAuthConsumer

With this patch it is easier to pass a customized \Buzz\Browser to
\SensioLabs\Connect\Api\Api and \SensioLabs\Connect\OAuthConsumer
without the nedd to provide the endpoint to the constructor.
It also removes \SensioLabs\Connect\Buzz\Client\Curl which is
unsecure and not needed anymore.
Merge branch 'master' of github.com:lucasaba/connect

Conflicts:
	src/SensioLabs/Connect/Api/Api.php
	src/SensioLabs/Connect/OAuthConsumer.php