Removed `--beamer` option; instead, use `beamer` as output format.
There is no longer a `pdf` output format; instead, pandoc tries
to produce a pdf if the output file has a `.pdf` extension.
(The output format can be latex -- the default for pdf output,
latex+lhs, or beamer.)
This seems more consistent with the way pandoc currently works
(e.g. we have an `html5` output format, not an `--html5` option).
This allows users to select a slide level below the first
header level with content.
Note that content under sections above the slide level will not appear
in slides (either in beamer or in HTML slide shows).
This is primarily useful for creating documents that can be made
into both slides and handouts (which contain additional content
outside the slides).
* `---` is always em-dash, `--` is always en-dash.
* pandoc no longer tries to guess when `-` should be en-dash.
* A new option, `--old-dashes`, is provided for legacy documents.
Rationale: The rules for en-dash are too complex and
language-dependent for a guesser to work reliably. This
change gives users greater control. The alternative of
using unicode isn't very good, since unicode em- and en-
dashes are barely distinguishable in a monospace font.
Add the ability to refer to internal links to the ConTeXt writer, just
like the HTML writer can. The 'hierarchicalize' function generates
unique names for sections, which can be used for references in ConTeXt,
just as they can be in HTML.
The ConTeXt writer adds these unique identifiers to each \section and
does special processing of the Link target to see if it starts with a
'#' (hash symbol), which is the tip-off that the link is an internal
link.
Beamer output uses the default LaTeX template, with some
customizations via variables.
Added `writerBeamer` to `WriterOptions`.
Added `--beamer` option to `markdown2pdf`.
* This is a breaking API change for `writeHtml`.
* It introduces a new dependency on blaze-html.
* Pandoc now depends on highlighting-kate >= 0.4, which
also uses blaze-html.
* The --ascii option has been removed, because of differences
in blaze-html's and xhtml's escaping.
* Pandoc will no longer transform leading newlines in code
blocks to `<br/>` tags.
