Update for scalaz 7.1 (days 0 to 10)

Minor updates... A couple of syntax errors, typo's and changes from scalaz 7.0 to 7.1. Will get onto the final chapters (days) soon.  ;-)
https://oss.sonatype.org/service/local/repositories/releases/archive/org/scalaz/scalaz_2.11/7.1.0/scalaz_2.11-7.1.0-javadoc.jar/!/index.html#scalaz.package