Small experiments dealing with Projections and string Columns concatenation.
- Created DateTimeFunctions.scala
   - holds date and time functions, which is now a self type of DAL.
   - a bunch of date and time functions supported by H2.
   - search on general date and functions is commented out
- JodaTimeSupport.scala.
   - Holds lifted embedded support for joda time. also a self type of DAL.
Amending bogus experiment with Projections, IDEA wouldn't complain, but sbt would. bleh
Removed one layer of imports