Add support to make identity files from the command line.

Change-Id: Ifaa1b4653ea6c1b311e711bd285d08afb0d3e12c
diff --git a/build/tools.atree b/build/tools.atree
index 56be5b5..7b8bb76 100644
--- a/build/tools.atree
+++ b/build/tools.atree
@@ -104,6 +104,7 @@
 framework/guavalib.jar           tools/lib/guavalib.jar
 framework/jsilver.jar            tools/lib/jsilver.jar
 framework/jython.jar             tools/lib/jython.jar
+framework/mkidentity-prebuilt.jar tools/lib/mkidentity.jar
 
 # 3rd Party java libraries
 framework/groovy-all-1.7.0.jar                                tools/lib/groovy-all-1.7.0.jar