Added HTTP client API.
Added an api/ section of modules, for future client APIs. Additionally,
added the majority of the HTTP client API platform. This currently
implements header parsing, url parsing, and GET requests.
Minor fixes to the HTTP API.
Fixed issue with additional query params being incorrectly appended.
Fixed GET requests not sending the query params.
Changed the API for http_get() to accept a pre-parsed http_client_t instead of a raw URL.
Merge http://github.com/atheme/atheme
remvoved some debug printing
Merge pull request #246 from alyx/master

Add HTTP client API