Corrected the order of parameters for assertion

because it was resulting in confusing failed
test output. while at it, fixed a minor typo.
Merge pull request #232 from alphagov/correct-expected-actual-in-assertion

Corrected the order of parameters for assertion
Event log to track suspended account login attempt

https://www.agileplannerapp.com/boards/173808/cards/3443

this should help the admin understand why a user
login was prevented even though correct login
credentials were supplied.