Removed slick-testkit integration
Added a new independent junit test:
   slick-testkit/src/test/scala/scala/slick/test/jdbc/TypedStaticQueryTest.scala

Fixed a minor bug that ignored class variables as CompileTimeConnection implementations
Created ConfigHandler trait for unified access to config file and database connection creation during compile-time and run-time.
Moved CompileTimeConnection to TypedStaticQuery.CompileTimeConnection
Some housekeeping in TypedStaticQuery