FakeApp and EditionalisedHtmlUnit must specify a port

Use port 9002 for common tests
Article tests use port 9001
Article healthcheck tests muse port 9001, remove health test in common
Clean up whitespace
FakeApp doesn't need a port
Admin tests run on 9003
Tidy up article test port
Tidy up admin
Applications test port 9002
Tidy common Fake object
Update archive test package
Remove article management healthcheck test
Commerical tests run on port 9005
Diagnostics tests run on 9006
Discussion tests run on port 9007
Facia tests run on port 9008
Facia tool tests run on port 9009
Identity tests run on port 9010
Onward tests run on port 9011
Preview tests run on port 9012