Exclude .htaccess files from rsync in run-purge.sh
Exclude .htaccess files from rsync in run-purge.sh

The only difference in the repo directory for workers between the
internal and public instances is the presence of .htaccess files.
We don't want them removed when rsyncing contents, so we need to
exclude them from the rsync command.

See https://softwarefactory-project.io/storyboard/#!/story/56 for
additional information.

Change-Id: I477ea6f75b38bc97b1b755bd0c2e453340debed6

javierpena/puppet-delorean,rdo-infra/puppet-dlrn,javierpena/puppet-delorean,rdo-infra/puppet-dlrn,rdo-infra/puppet-dlrn,javierpena/puppet-delorean