Use LPeg 1.1

[bpj]

Describe your proposed improvement and the problem it solves.

Lpeg 1.1 was recently released. It features a new constructor lpeg.utfR(codepoint1, codepoint2) which creates a matcher for a range of UTF-8 characters. I hope there is a chance that the next release of Pandoc will be built with Lpeg 1.1!

[tarleb]

Necessary steps:

• Update code bundled in Haskell package lpeg.
• Do a new release of that package
• Bump lower bound in pandoc.cabal.

[jgm]

Good to see you back @tarleb!

[tarleb]

Thanks! I'm glad too, it's a bit like coming home.

[bpj]

Thanks for the prompt update @tarleb !