Add `concatLineBlock`.
LineBlock + AsciiDoc writer.
LineBlock + ConTeXt writer.
LineBlock + custom writer.
LineBlock + DocBook writer.
LineBlock + docx writer.
LineBlock + DokuWiki writer.
LineBlock + FB2 writer.
`mappend` → `<>`.
LineBlock + HTML writer.
LineBlock + ICML writer.
Remove extra Control.Applicative imports.
Add Default instance for Writers.LaTeX.WriterState.
Rewrite comments.
LineBlock + LaTeX writer.
Add a file describing differences from Pandoc.
LaTeX writer: Fix non-breakable spaces in the beginning of a
line.
Style.
reST writer is still here.
`... >>= return . ...` → `... <$> ...`.