Add and install cmt-properties.h

Properties definition file just has property definition strings.
These aren't yet wired to real xinput properties yet.

BUG=chromium-os:16097
TEST=None yet.

Change-Id: I2f26549fb24b0cccd441967ba71bffb41f7786d4
diff --git a/configure.ac b/configure.ac
index a0ddbb1..006def2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -76,5 +76,6 @@
 
 AC_CONFIG_FILES([Makefile
                  src/Makefile
+                 include/Makefile
                  xorg-cmt.pc])
 AC_OUTPUT