Version 1.6.4 release.

Author: tristanmorgan

main.go

@@ -53,7 +53,7 @@ import (
 // It is also set by the linker when fabio
 // is built via the Makefile or the build/docker.sh
 // script to ensure the correct version number
-var version = "1.6.3"
+var version = "1.6.4"
 
 var shuttingDown int32