lhs2tex-1.22 (2018-09-23)

• Compatibility with ghc-8.6.

lhs2tex-1.21 (2018-09-10)

• Some code refactoring.
• Experimental markdown mode.
• Improved output when using deprecated modes (#59).
• Compatibility with ghc-8.4 (#69).
• Fix in the formatting directives parser (#64).