Implement all aisv3 HTTP requests. Added PATCH and COPY methods.

indra/llmessage/aicurl.cpp

@@ -803,6 +803,23 @@ void CurlEasyRequest::setPut(U32 size, bool keepalive)
   setopt(CURLOPT_INFILESIZE, size);
 }
 
+void CurlEasyRequest::setPatch(U32 size, bool keepalive)
+{
+	DoutCurl("PATCH size is " << size << " bytes.");
+	mContentLength = size;
+
+	// The server never replies with 100-continue, so suppress the "Expect: 100-continue" header that libcurl adds by default.
+	addHeader("Expect:");
+	if (size > 0 && keepalive)
+	{
+		addHeader("Connection: keep-alive");
+		addHeader("Keep-alive: 300");
+	}
+	setopt(CURLOPT_UPLOAD, 1);
+	setopt(CURLOPT_INFILESIZE, size);\
+	setopt(CURLOPT_CUSTOMREQUEST, "PATCH");
+}
+
 void CurlEasyRequest::setPost(AIPostFieldPtr const& postdata, U32 size, bool keepalive)
 {
   llassert_always(postdata->data());