Upgrade to scalaz 7.1.0 (and Specs to 2.4)
Use Level in HadoopLogFactory
Switch Level to value case class
Merge pull request #337 from NICTA/topic/scalaz-7.1-upgrade

Upgrade to scalaz 7.1.0 (and Specs to 2.4)
Fix tests due to Level changes
Fixed last test - ScoobiAppSpec