Fixed an omitted 1.8.1 in the releases list of the website.
Fixed an omitted 1.8.1 in the releases list of the website.

1.8.1 was added to the news section of the site data,
but not the versions section.
abudnik/mesos,abudnik/mesos,Gilbert88/mesos,Gilbert88/mesos,Gilbert88/mesos,dforsyth/mesos,abudnik/mesos,abudnik/mesos,reneploetz/mesos,dforsyth/mesos,Gilbert88/mesos,Gilbert88/mesos,reneploetz/mesos,reneploetz/mesos,Gilbert88/mesos,reneploetz/mesos,abudnik/mesos,dforsyth/mesos,reneploetz/mesos,Gilbert88/mesos,dforsyth/mesos,abudnik/mesos,dforsyth/mesos,reneploetz/mesos,abudnik/mesos,dforsyth/mesos,dforsyth/mesos,reneploetz/mesos