added: setting a correct mime type for static files - using magic library

added: std::wstring file_mime_type to ItemContent - a mime type for static file
added: Header (core/header.h) - there will be header names defined, at the moment only content_type
added: FuncionsBase::Finish() - it is called at the end when the winix finishes

winixd/functions/functionbase.h

@@ -92,12 +92,15 @@ public:
 
 
 	virtual void Init();
+	virtual void Finish();
+
 	virtual bool HasAccess();
 	virtual void MakePost();
 	virtual void MakeGet();
 	virtual void MakeDelete();
 	virtual void Clear();
 
+
 	//void SetConfig(Config * pconfig);
 	//void SetCur(Cur * pcur);
 	void SetDb(Db * pdb);