added slick,psql,joda-convert,scalaz

One day I'll actually use scalaz
renames and changed headway to optional
StopTimes don't contain a stop
Able to read trips from the database
Can route
I can now get Service
Making slick do more lifting
Renaming Service related classes to clarify
left over changes
comments
Renames and comments

Things are clearer now
refining the interface
making things slicker
Added FKs and brought table vale out of sub-object
trying out a "context" approach to analysis
Gtfs is NOT GtfsData

Gtfs object is looking to be removed
added sbt convenience script
added build properties
fix: trim headers of white spaces
shape_dist_traveled now Option[Double]