Jira writer: use jira-wiki-markup renderer

Pandoc's AST is translated into the Jira AST, which is then rendered by
the dedicated Jira printer.

The following improvements are included in this change:

- non-jira raw blocks are fully discarded instead of showing as blank
  lines;
- table cells can contain multiple blocks;
- unnecessary blank lines are removed from the output;
- markup chars within words are properly surrounded by braces;
- preserving soft linebreaks via `--wrap=preserve` is supported.

Note that backslashes are rendered as HTML entities, as there appears no
alternative to produce a plain backslash if it is followed by markup.
This may cause problems when used with confluence, where rendering seems
to fail in this case.

Closes: #5926

0 files changed, 0 insertions, 0 deletions