2017-10-09: add precompilation to newbase60.w tip

add precompilation to newbase60.w

diff --git a/examples/newbase60.w b/examples/newbase60.w
--- a/examples/newbase60.w
+++ b/examples/newbase60.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples newbase60) main)' -s "$0" "$@"
 ; !#