bump to 3.1.3rc1
diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index 0b2a662..6788115 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "3.1.2"
+IDLE_VERSION = "3.1.3rc1"