Import curl 7.43

This is a simple import of curl 7.43.
The only change from the official release is the fact that the
Android.mk was removed to avoid build error trying to parse it.

BUG: 22347561

Change-Id: I52ef6798d30b25d22d1f62770d571adec8bcf4d5
diff --git a/docs/examples/imap-copy.c b/docs/examples/imap-copy.c
new file mode 100644
index 0000000..fe2d91c
--- /dev/null
+++ b/docs/examples/imap-copy.c
@@ -0,0 +1,65 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2014, Daniel Stenberg, <[email protected]>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include <stdio.h>
+#include <curl/curl.h>
+
+/* This is a simple example showing how to copy a mail from one mailbox folder
+ * to another using libcurl's IMAP capabilities.
+ *
+ * Note that this example requires libcurl 7.30.0 or above.
+ */
+
+int main(void)
+{
+  CURL *curl;
+  CURLcode res = CURLE_OK;
+
+  curl = curl_easy_init();
+  if(curl) {
+    /* Set username and password */
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
+
+    /* This is source mailbox folder to select */
+    curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");
+
+    /* Set the COPY command specifing the message ID and destination folder */
+    curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "COPY 1 FOLDER");
+
+    /* Note that to perform a move operation you will need to perform the copy,
+     * then mark the original mail as Deleted and EXPUNGE or CLOSE. Please see
+     * imap-store.c for more information on deleting messages. */
+
+    /* Perform the custom request */
+    res = curl_easy_perform(curl);
+
+    /* Check for errors */
+    if(res != CURLE_OK)
+      fprintf(stderr, "curl_easy_perform() failed: %s\n",
+              curl_easy_strerror(res));
+
+    /* Always cleanup */
+    curl_easy_cleanup(curl);
+  }
+
+  return (int)res;
+}