Upgrade scalaz and spec2 dependency + update Monocle imports
Upgrade to scalaz 7.1 and specs2 2.4
Upgrade Monocle to 0.5.0
Merge with master
Add workaround maven central issue
Merge branch 'master' of https://github.com/julien-truffaut/argonaut into julien-truffaut-master

Conflicts:
	project/build.scala