+* Renamed HTTPi to HttpUtil
+* Renamed HTTPi_Request to HttpRequest
+* Renamed HTTPi_Response to HttpResponse
+* Added several methods to HttpRequest: unsetOptions(), addHeaders(array),
+ getHeaders(), unsetHeaders(), addCookies(array), getCookies(), unsetCookies(),
+ setSslOptions(array), getSslOptions(), unsetSslOptions()
+* Improved HTTP ranges support