Check for root and root perms and offer to install/fix

Also fix sort order for file selector by date and file sizes

Change-Id: Idff9fe4232c19d4ed1082e78fabe6f921aa0a114
diff --git a/prebuilt/Android.mk b/prebuilt/Android.mk
index 5e78b34..f0c2c26 100644
--- a/prebuilt/Android.mk
+++ b/prebuilt/Android.mk
@@ -185,3 +185,23 @@
 	LOCAL_SRC_FILES := $(LOCAL_MODULE)
 	include $(BUILD_PREBUILT)
 endif
+
+ifneq ($(TW_EXCLUDE_SUPERSU), true)
+	#su binary
+	include $(CLEAR_VARS)
+	LOCAL_MODULE := su
+	LOCAL_MODULE_TAGS := eng
+	LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
+	LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/res/supersu
+	LOCAL_SRC_FILES := $(LOCAL_MODULE)
+	include $(BUILD_PREBUILT)
+
+	#SuperSU special installer APK
+	include $(CLEAR_VARS)
+	LOCAL_MODULE := Superuser.apk
+	LOCAL_MODULE_TAGS := eng
+	LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
+	LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/res/supersu
+	LOCAL_SRC_FILES := $(LOCAL_MODULE)
+	include $(BUILD_PREBUILT)
+endif
\ No newline at end of file