Log Message:
Update to 0.15.2

CHANGELOG:
0.15.2
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* Fixed a Trustworthiness problem for GHC 7.8+

0.15.1
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* Nathan van Doorn fixed a number of embarassing bugs in the `Enum` instances.

0.15
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* `instance IsList NonEmpty`

0.14
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* Allow for manual removal of dependencies to support advanced sandbox users who \ 
explicitly want to avoid compiling certain dependencies
  they know they aren't using.

  We will fix bugs caused by any combination of these package flags, but the API \ 
of the package should be considered the default build
  configuration with all of the package dependency flags enabled.

* Will now build as full-fledged `Safe` Haskell if you configure with -f-hashable.

* Added some missing `Generic`/`Generic`/`Hashable` instances