Fatal error with JHttpTransport when curl is disabled

[xillibit]

How to reproduce the problem and/or test the patch:: You need to have curl extension disabled on php, and you will obtain this fatal error.

The issue can be reproduced by using 2.0 version of com_patch and by clicking on apply patch, then the issue happens.

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Initial Comment:

Catchable fatal error: Argument 2 passed to JHttp::__construct() must implement interface JHttpTransport, boolean given, called in C:\wamp\www\joomla_master\libraries\joomla\http\factory.php on line 37 and defined in C:\wamp\www\joomla_master\libraries\joomla\http\http.php on line 42