Add stats for prod111 release

[dominikl]

See title.

[sbesson]

/usr/gem/gems/html-proofer-5.0.0/lib/html_proofer/configuration.rb:68:in `parse_cli_options': needless argument: --allow-missing-href=true (OptionParser::NeedlessArgument)

Do we need similar fixes that the ones that went on www.openmicroscopy.org? Or disable the link checking? /cc @pwalczysko

[pwalczysko]

@dominikl @sbesson this commit https://github.com/IDR/idr.openmicroscopy.org/pull/174/commits/b0c4b3fe141274d3469b3be9111825a80657281d seems to work on https://github.com/IDR/idr.openmicroscopy.org/pull/174 - @dominikl do you want to cherry-pick it here, and I will close https://github.com/IDR/idr.openmicroscopy.org/pull/174 ?

[dominikl]

Thanks @pwalczysko .