ghc-cmark-gfm-0.2.1-bp153.1.20

- Update cmark-gfm to version 0.2.1.
  cmark-gfm 0.2.1 (15 Nov 2019)
  * Add tasklist support (#16, Christian Gill).

- Drop obsolete group attributes.

- Update cmark-gfm to version 0.2.0.
  cmark-gfm 0.2.0 (8 Apr 2019)
  * Pull in upstream changes.
  cmark 0.6 (08 Apr 2019)
  * Update to cmark 0.29.0.
  * Export optUnsafe.  Note that the default is now to suppress
    potentially unsafe HTML; set optUnsafe to return to the old behavior.

- Update cmark-gfm to version 0.1.8.
  Upstream has edited the change log file since the last release in
  a non-trivial way, i.e. they did more than just add a new entry
  at the top. You can review the file at:
  http://hackage.haskell.org/package/cmark-gfm-0.1.8/src/changelog

- Update cmark-gfm to version 0.1.7.
  Upstream has edited the change log file since the last release in
  a non-trivial way, i.e. they did more than just add a new entry
  at the top. You can review the file at:
  http://hackage.haskell.org/package/cmark-gfm-0.1.7/src/changelog

- Update cmark-gfm to version 0.1.6.
  cmark-gfm 0.1.6 (17 Oct 2018)
  * Update to cmark-gfm 0.28.3.gfm.18.
  * `optUnsafe` is now exposed, instead of `optSafe`.

- Update cmark-gfm to version 0.1.5.
  cmark-gfm 0.1.5 (21 Aug 2018)
  * Update to cmark-gfm 0.28.3.gfm.15.
  * Fix build with system cmark-gfm (Felix Yan, #9).

- Update cmark-gfm to version 0.1.4.
  cmark-gfm 0.1.4 (2 Jul 2018)
  * Extensions work correctly on big-endian systems (Ilias Tsitsimpis).

- Add cmark-gfm at version 0.1.3.