allow a request to be processed in a job

Now we allow a request to be passed into a job queue,
and after the job finishes the request is passed into
a controller again. In order to achieve this we have
a requests queue in System, when we put a request
to the job this Request structure is preserved in the
queue and for a new request a new Request is added to
the queue.

while here:
- remove App::Lock()/Unlock(), use scoped locking
- fix: Plugin now has a Call method which takes ModelConnector
  and a logger (used in multithreaded environment)
- BaseThread has a main_model_connector pointer
  to the main (from the main thread) model connector
- the FastCGI structure fcgi_request moved from App to Request
- some methods for handling requests moved from App to Request
- small refactoring in main.cpp
- add Http class (a http client)

winixd/functions/functionbase.h

@@ -40,7 +40,6 @@
 #include "db/db.h"
 #include "core/request.h"
 #include "core/config.h"
-#include "core/system.h"
 #include "core/synchro.h"
 #include "notify/notify.h"
 #include "core/winixrequest.h"
@@ -116,6 +115,14 @@ public:
 	virtual void MakeDelete();
 	virtual void Clear();
 
+	/*
+	 * called from the jobs thread
+	 * objects are locked
+	 */
+	virtual void ContinueMakePost();
+	virtual void ContinueMakeGet();
+	virtual void ContinueMakeDelete();
+
 
 	//void SetConfig(Config * pconfig);
 	//void SetCur(Cur * pcur);
@@ -130,7 +137,6 @@ public:
 protected:
 
 	//Config    * config;
-	//Cur       * cur;
 	Db        * db; // depracated
 	//System    * system;
 	Functions * functions;