Log Message:
Update to mono-traversable-1.0.15.1

1.0.15.1
* Remove whitespace after @ in as-patterns for GHC HEAD #186

1.0.15.0
* Added toNonEmpty to Data.NonNull #185

1.0.14.0
* Added WrappedMono to Data.MonoTraversable #182

1.0.13.0
* Added WrappedPoly to Data.MonoTraversable #180

1.0.12.0
* Added filterSet to Data.Containers
* Use container specific implementations for filterSet and filterMap
  #178

1.0.11.0
* Adding monomorphic instances for GHC.Generics and Data.Proxy types
  #175

1.0.10.0
* Make index work on negative indices #172 #114

1.0.9.0
* Added filterMap to Data.Containers #167