Merge pull request #598 from rjc123/newmappings

Configure main land registry site on transition tool
Merge pull request #599 from rjc123/newmappings

Change date of ukti transition in TTool app
Configure Highways Agency on transition
Configure UKCES on transition tool
Merge pull request #600 from rjc123/newmappings

Configure new sites on transition
Configure charity commission on transition app
Add aliases to main defra site
Configure additional alias for EA main domain
Configure Insolvency Service legacy domain on transition