Add messages for Code of Conduct footer links

Authored by bd808 on May 19 2017, 11:26 PM.

Description

Add messages for Code of Conduct footer links

Add new messages that can be used via SkinTemplateOutputPageBeforeExec
to add a link to the Code of Conduct for Wikimedia Technical Spaces to
appropriate wikis.

Change-Id: I26d0618fc6d3e7ad96c24ae46b189e51f8cc3f00

Details