Merge pull request #1019 from rjc123/newsites

Add aliases for Homes and Communities Agency manuals subdomain
Check if there are conflicts on master when running the build

- This is taken from
  https://github.com/alphagov/specialist-publisher/commit/9a097249c142c6e7146706dfd5fc0282c92f4886,
  as a thing discussed in tech lead standup that could be useful and
  passed to me to do via Jamie.
Configure NACTSO in the Transition Tool
Configure NACTSO's Secure Your Fertiliser site

- This is a site under NACTSO.
Merge pull request #1020 from alphagov/jenkins_test_merge_result_of_branches

Check if there are conflicts on master when running the build
Merge pull request #1021 from alphagov/configure_natsco_and_secureyourfertiliser

Configure NACTSO and Secure Your Fertiliser sites
Change DECC restats configuration information