Add Music Manager's curl 7.21.2 source.

Change-Id: I259a43fa52d581524a5ce8ae1711467acb1d9d50
diff --git a/docs/examples/persistant.c b/docs/examples/persistant.c
new file mode 100644
index 0000000..177ada3
--- /dev/null
+++ b/docs/examples/persistant.c
@@ -0,0 +1,40 @@
+/*****************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <curl/curl.h>
+
+int main(int argc, char **argv)
+{
+  CURL *curl;
+  CURLcode res;
+
+  curl_global_init(CURL_GLOBAL_ALL);
+
+  curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+    curl_easy_setopt(curl, CURLOPT_HEADER, 1L);
+
+    /* get the first document */
+    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
+    res = curl_easy_perform(curl);
+
+    /* get another document from the same server using the same
+       connection */
+    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/docs/");
+    res = curl_easy_perform(curl);
+
+    /* always cleanup */
+    curl_easy_cleanup(curl);
+  }
+
+  return 0;
+}