Yes, I did. And even the staging didn't update. I've read about Apache CMS, but don't have a complete and clear picture yet. Launching CMS on opennlp.apache.org gives 500 with this message: Invalid filesystem path syntax: Target path '/incubator/opennlp/site' does not exist at /usr/local/cms/webgui/lib/ASF/CMS.pm line 573
Probably we need INFRA ticket to fix the process of SVN commit -> staging -> publishing.
About building locally:
I have found a manual to build html from markdown before commit and added a link to HOWTO of the site, but I didn't succeed in doing it myself and in https://issues.apache.org/jira/browse/LUCENE-3750 people discuss it as well.