digestive-functors-0.7.1.1: CHANGELOG

- 0.7.1.1
    * Bump `QuickCheck` dependency to allow `QuickCheck-2.7`
    * Clean warnings in tests compilation
    * Don't use `Text.Read` to fix compilation on GHC 7.4

- 0.7.1.0
    * Add `validateOptional` function
    * Add `condition` functions to allow composing multiple independent
      validation functions
    * Bump `text` dependency to allow `text-1.1`