Allow sending files with any status
Merge pull request #3222 from gmethvin/status-sendfile-2.3.x

Allow sending files with any status (2.3)
Default message for error.date message key missing
Changed play-scala-intro Scala version to 2.10.4

The DB framework sorm is only working with Scala 2.10.4. Therefor the Scala version in the build.sbt is explicitly set to 2.10.4.

Signed-off-by: Markus Jura <markus.jura@gmail.com>