[wip/jafar-rtslam] Fix compilation of the MTI option

Add a patch which tell to cmake to look in ${PWD} to search for Find*
description file. Without that, it can find FindMTI, which lead to a
configure error in the presence of the MTI option.

Reported by croussil@

jafar-rtslam/Makefile

@@ -3,7 +3,7 @@
 #
 
 JAFAR_PKG=		rtslam-0.2
-PKGREVISION= 	3
+PKGREVISION= 	4
 CATEGORIES=		wip
 JAFAR_COMMENT=		Jafar module to do fast and generic EKF Slam.
 

jafar-rtslam/distinfo

@@ -4,3 +4,4 @@ Size (jafar-rtslam-0.2.tar.gz) = 733290 bytes
 SHA1 (patch-aa) = f5e95671e0ded99b9f2207ac93764da44bffda3c
 SHA1 (patch-ab) = fdaab1bc3511fdbb78b201782b8a0ffc76ed22ce
 SHA1 (patch-ac) = e9bf8fe7288a956fa84e00c9449831e28bb50a00
+SHA1 (patch-ad) = 4d0ae943a4ea8f97c65f31a056c5d0deaf5607f4

jafar-rtslam/patches/patch-ad

+--- CMakeLists.txt.orig	2013-06-09 22:11:15.882757720 +0200
++++ CMakeLists.txt	2013-06-09 22:11:00.742758100 +0200
+@@ -22,6 +22,8 @@
+   cmake_policy(SET CMP0003 NEW)
+ endif(COMMAND cmake_policy)
+ 
++list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
++
+ #-----------------------------------------------------------------------------
+ # Compilation flags for release and debug
+ #-----------------------------------------------------------------------------