add private citizen login scenarios
added login scenarios for caseworkers
fixed caseworker login steps
made step more specific to the user
Updated run_tests.sh for vagrant image
fixed spelling
Removed file created by error
Merge branch 'master' into nd_add_login
adding new files
Changed wording to Caseworker
Changed wording to Citizen
Merge pull request #14 from LandRegistry/nd_add_login

Nd add login
Merge branch 'master' into am_refactor