change version to 0.6.4

diff --git a/version.py b/version.py
index 73241e0..067fa62 100644
--- a/version.py
+++ b/version.py
@@ -1,6 +1,6 @@

 name = "Python Keylogger"
-version = "0.6.3"
+version = "0.6.4"
 description = "Simple Python Keylogger for Windows"
 url = "http://pykeylogger.sourceforge.net"
 license = "GPL"