Update scalaz to 7.1.7
Update scalaz to 7.1.7

Other than staying current, the main reason for upgrading is the
potential performance benefits for Free, given the `fastFlatMap`
optimization backported in 7.1.7.

See https://github.com/scalaz/scalaz/pull/1085

quasar-analytics/quasar,drostron/quasar,quasar-analytics/quasar,jedesah/Quasar,quasar-analytics/quasar,slamdata/quasar,jedesah/Quasar,slamdata/slamengine,jedesah/Quasar,quasar-analytics/quasar,slamdata/slamengine,drostron/quasar,drostron/quasar,drostron/quasar,djspiewak/quasar,jedesah/Quasar,slamdata/slamengine