ESC-18 Upgrade to Scala 2.10.0

* Sorted out VerifyError which was the result of duplicate
commons-codec jars with different versions in deployment war.
* Switched to String interpolation for the majority of cases.
* Force invoker plugin to avoid running tests if the user passes
a system property to skip tests when invoking its parent.
* Remove any references to escalante-build project which was
removed in an earlier commit.