Merge branch '38-upgrade-to-asp-core-2-0' into 'master'

Resolve "Upgrade to ASP Core 2.0"

Closes #38

See merge request dbogatov/status-site!21
9 jobs for 47-use-docker-compose-3-0 in 11 minutes and 16 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Build
passed build-app #4914
docker

00:03:48

passed build-docs #4912
docker

00:01:56

passed build-ping #4913
docker

00:00:26

 
  Test
passed blc-app #4917
docker

00:03:03

passed blc-docs #4918
docker

00:00:45

passed tidy-app #4916
docker

00:03:03

passed unit-test-app #4915
docker

00:04:38

 
  Release
passed release-app-docs #4919
shell

00:02:45

passed release-debian #4920
docker

00:02:23