Add mrplus examples to tarball

This commit was SVN r26643.

orte/test/system/Makefile.include

@@ -45,6 +45,8 @@ EXTRA_DIST += \
         test/system/sigusr_trap.c \
         test/system/spawn_child.c \
         test/system/spin.c \
-        test/system/orte_sensor.c
-
-
+        test/system/orte_sensor.c \
+	test/system/mapper.c \
+	test/system/mapr.py \
+	test/system/reducer.c \
+	test/system/red.py