Change PLATFORM_VERSION and PLATFORM_VERSION_CODENAME to KKWT.

Change PLATFORM_VERSION and PLATFORM_VERSION_CODENAME to KKWT, as discussed.

Change-Id: Ia2d8628c4e9ee6b3cf654c8bdfc966a4af5c573c
diff --git a/CleanSpec.mk b/CleanSpec.mk
index c0525ad..ff05194 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -211,6 +211,11 @@
 # 4.4.2
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 
+# KKWT development
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/*)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************