Linux 2.6.13-rc3

Yeah, this time hopefully I'm not confusing the version
numbers. The last release was -rc2, _this_ is -rc3.
diff --git a/Makefile b/Makefile
index 9cf07e7..cf34a6b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 13
-EXTRAVERSION =-rc2
+EXTRAVERSION =-rc3
 NAME=Woozy Numbat
 
 # *DOCUMENTATION*