Provides an easy way to perform HTTP requests

 PHP5 rewrite of HTTP_Request package (with parts of HTTP_Client). Provides
 cleaner API and pluggable Adapters:
  * Socket adapter, based on old HTTP_Request code,
  * Curl adapter, wraps around PHP's cURL extension,
  * Mock adapter, to use for testing packages dependent on HTTP_Request2.
 Supports POST requests with data and file uploads, basic and digest
 authentication, cookies, managing cookies across requests, proxies, gzip and
 deflate encodings, redirects, monitoring the request progress with
 Observers...