Got ScalaTest working in Eclipse

Turned out that the package structure was causing problems.
Fixed TransformerTest with text encoding

The multi-line tests are dependent on the source file being saved as
Unix newlines, not DOS ones.
Brought up to work with Play 2.1.0

Had previously been Play 2.1-RC1.  Needed to upgrade sbt reference.
More importantly, there was an API change that required a tweak to
Security.Authenticated.