Updates & Enhancements

-Use String interpolation for specs2 acceptance style.
-Changed MustMatchers to Matcher and use 'should' instead.
-Added -Xss6m to runem.sh, as it is required to compile specs2 source generated by dataTables.scala.
-Added double equal (==) assertion type to assertTestsInOneFile.scala.
-Added scalautilsScalaz.scala to measure compile time of === for scalautils vs scalaz.
-Added shapelessTables.scala to measure compile time overhead of experimental shapeless's table implementation.