Begin post-2.8.9 development

Source/CMakeVersion.cmake

@@ -2,5 +2,5 @@
 SET(CMake_VERSION_MAJOR 2)
 SET(CMake_VERSION_MINOR 8)
 SET(CMake_VERSION_PATCH 9)
-SET(CMake_VERSION_TWEAK 0)
-#SET(CMake_VERSION_RC 3)
+SET(CMake_VERSION_TWEAK 20120809)
+#SET(CMake_VERSION_RC 1)