The links were still stuck to version 1.6. Let's update them. The patch needs to be carefully backported to 1.8 and 1.7 after editing the respective version (replace 1.9dev with 1.8 or 1.7).
This fix must be backported to 1.6. Signed-off-by: Godbach <nylzhaowei@gmail.com>
Add some lua documentation [wt: should be backported to 1.6]