Add sample method to RichPipe
Add return types to limit and sample
Merge pull request #327 from willf/develop

Add sample method to RichPipe
Update scripts/scald.rb

Update for the refactored away build.sbt as well as accommodate
the new sbt version format in version.sbt. Fixes #325
Merge pull request #331 from rickeyvisinski-kanban/patch-1

Update scripts/scald.rb
Update Build.scala to include scalding-args

with this change,
sbt 'test-only com.twitter.scalding.ArgTest'
finds the class and works
Merge pull request #335 from tchklovski/patch-1

Update Build.scala to have scalding pull in scaldingArgs