[wip/jafar-rtslam] Add patch to fix QT keywords to allow 3rd party signal/slots libraries

jafar-rtslam/distinfo

 SHA1 (jafar-rtslam-0.3.tar.gz) = de6ce87c7bfb5b4c1a613301080fea7a6c776491
 RMD160 (jafar-rtslam-0.3.tar.gz) = dd97d607e1de192218f4a9ec621af9d11ffd6de7
 Size (jafar-rtslam-0.3.tar.gz) = 768877 bytes
+SHA1 (patch-aa) = 74e4aa2badc4a225a288e5420ab9065da3f7f353

jafar-rtslam/patches/patch-aa

+--- include/rtslam/display_qt.hpp	2014-05-29 02:22:39.677960843 +0200
++++ include/rtslam/display_qt.hpp	2014-05-29 02:23:33.309959257 +0200
+@@ -153,7 +153,7 @@
+ 		void bufferize();
+ 		void render();
+ 		void dump(std::string filename);
+-	public slots:
++	public Q_SLOTS:
+ 		void onKeyPress(QKeyEvent *event);
+ 		void onMouseClick(QGraphicsSceneMouseEvent *mouseEvent, bool isClick);
+ };