Tweak unit tests

More of them now work
Add Racer dependency for tests
Add missing comma

:(
Add expect for tests
Add final devDependencies from Racer

Derby tests depend on Racer tests, but Racer won't be installed with dev
on CI builds.
Thus, all Racer devDependencies must be duplicated.
Fix most tests
Make clientName optional

Helps fix unit tests
Fix emptyModel.bundle
Fix more tests
Fix Windows tests
Strip empty CSS

Helps unit test
Fix view.render() tests
Merge remote-tracking branch 'Unroll-Me/master' into habitrpg