Updated ScalaTemplateCompiler, working with latest Scala IDE and 2.10.0-RC1

I updated the ScalaTemplateCompiler from the latest version of Play 2.1.0 and updated the dependencies for Scala 2.10.0. Finally I understood the isByNameParam API change in the new Scala (now I need to ask to the symbol instead of the modifiers of the ValDef).

Fixed a Presentation Compiler thread issue. All tests are running.