gitignore changes
Extract ModelsLibFileUtils object from Application
Add play-cache, scalatest, akka-testkit dependencies to build.sbt
Adds ModelLibraryCompiler and Messages
Adds Global to start model compilation at startup, along with StatusCacher
Adds "/model/statuses.json" route to get the compilation status of library models.
Modify models.coffee to apply status styling to the list of models.