ghc-unliftio-0.2.12.1-bp153.1.20

- Update unliftio to version 0.2.12.1.
  [#]# 0.2.12.1
  * Minor doc improvements

- Drop obsolete group attributes.

- Update unliftio to version 0.2.12.
  [#]# 0.2.12
  * Dropped support for ghc-7.8
  * Addition of `UnliftIO.IO.File` module and atomic+durable file writes:
  * `writeBinaryFile`
  * `writeBinaryFileAtomic`
  * `writeBinaryFileDurable`
  * `writeBinaryFileDurableAtomic`
  * `withBinaryFileAtomic`
  * `withBinaryFileDurable`
  * `withBinaryFileDurableAtomic`
  * `ensureFileDurable`

- Update unliftio to version 0.2.11.
  [#]# 0.2.11
  * Deprecate `forkWithUnmask` in favor of the newly added `forkIOWithUnmask` to
    improve consistency. [https://github.com/fpco/unliftio/issues/44]

- Update unliftio to version 0.2.10.
  [#]# 0.2.10
  * Add pooling related functions for unliftio

- Update unliftio to version 0.2.9.0.
  [#]# 0.2.9.0
  * Add the new `Conc` datatype as a more efficient alternative to `Concurrently`

- Update unliftio to version 0.2.8.1.
  [#]# 0.2.8.1
  * Support for `stm-2.5.0.0`
  [#]# 0.2.8.0
  * Add 'UnliftIO.Memoize'

- Update unliftio to version 0.2.7.1.
  [#] Changelog for unliftio
  [#]# 0.2.7.1
  * Minor doc improvements

- Add unliftio at version 0.2.7.0.