Add FastCGI approach

diff --git a/testing/fastcgi-approach/README.txt b/testing/fastcgi-approach/README.txt
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+++ b/testing/fastcgi-approach/README.txt
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+The application could be quite easily made to use FastCGI. Unlike normal CGI,
+with FastCGI (fcgi), the process is executed once, and continues to run. The
+process will receive responses from the browser in the response loop. Hence,
+sensor data can be read in another thread while the response loop runs.
+
+Setup:
+Compile fastcgi_test.c with:
+gcc fastcgi_test.c -lfcgi -o fastcgi_test
+
+Configure nginx to pass all requests to the address /cgi/ to the application:
+Edit /etc/nginx/sites-enabled/default by adding the contents of nginx_server_config.txt
+
+Restart nginx:
+/etc/init.d/nginx restart
+
+Run the application:
+spawn-fcgi -p9005 -n ./fastcgi_test
+
+You can see the results at:
+http://your.domain/cgi
\ No newline at end of file

diff --git a/testing/fastcgi-approach/fastcgi_test.c b/testing/fastcgi-approach/fastcgi_test.c
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+++ b/testing/fastcgi-approach/fastcgi_test.c
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+#include "fcgi_stdio.h" /* fcgi library; put it first*/
+#include <stdlib.h>
+
+int main (int argc, char *argv[])
+{
+  int count = 0;
+
+  //Spawn thread to get sensor data here?
+  //Response loop
+       while (FCGI_Accept() >= 0)   {
+               printf("Content-type: text/html\r\n"
+                          "\r\n"
+                          "<title>FastCGI Hello! (C, fcgi_stdio library)</title>"
+                          "<h1>FastCGI Hello! (C, fcgi_stdio library)</h1>"
+                          "Request number %d running on host <i>%s</i>\n",
+                          count++, getenv("SERVER_HOSTNAME"));
+
+               char *data = getenv("QUERY_STRING");
+               if (data) {
+                       printf("<br>Query string is: '%s'\n", data);
+               }
+       }
+}

diff --git a/testing/fastcgi-approach/nginx_server_config.txt b/testing/fastcgi-approach/nginx_server_config.txt
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+++ b/testing/fastcgi-approach/nginx_server_config.txt
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+        #Custom cgi
+        location /cgi/ {
+                fastcgi_pass 127.0.0.1:9005;
+                fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
+                fastcgi_param  SERVER_HOSTNAME    mctxsoft;
+                fastcgi_param  SERVER_SOFTWARE    nginx;
+                fastcgi_param  QUERY_STRING       $query_string;
+                fastcgi_param  REQUEST_METHOD     $request_method;
+                fastcgi_param  CONTENT_TYPE       $content_type;
+                fastcgi_param  CONTENT_LENGTH     $content_length;
+                fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name
+                fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
+                fastcgi_param  REQUEST_URI        $request_uri;
+                fastcgi_param  DOCUMENT_URI       $document_uri;
+                fastcgi_param  DOCUMENT_ROOT      $document_root;
+                fastcgi_param  SERVER_PROTOCOL    $server_protocol;
+                fastcgi_param  REMOTE_ADDR        $remote_addr;
+                fastcgi_param  REMOTE_PORT        $remote_port;
+                fastcgi_param  SERVER_ADDR        $server_addr;
+                fastcgi_param  SERVER_PORT        $server_port;
+                fastcgi_param  SERVER_NAME        $server_name;
+        }