bump version to 2.7a4
diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index fd1b10f..2343ea8 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "2.7a3"
+IDLE_VERSION = "2.7a4"