v1.5.0

StatsFuns v1.5.0

Diff since v1.4.0

Merged pull requests:

• Add downstream tests of HypothesisTests (#179) (@devmotion)
• Add Runic (#182) (@devmotion)
• Hide formatting commit in git-blame (#183) (@devmotion)
• Use Löffler's recurrence relation for the Wilcox distribution (#184) (@devmotion)