* Added `thanks` variable
* Use `parskip.sty` when `indent` isn't set (fall
back to using `setlength` as before if `parskip.sty`
isn't available).
* Use `biblio-style` with biblatex.
* Added `biblatexoptions` variable.
* Added `section-titles` variable (defaults to true)
to enable/suppress section title pages in beamer
slide shows.
* Moved beamer themes after fonts, so that themes can
change fonts. (Previously the fonts set were being
clobbered by lmodern.sty.)
- only pass options to color package if colorlinks is set
- make definition of `\euro` conditional in xelatex/lualatex,
as it is already for pdflatex
(Andrew Dunning)
* Removed setting of `subject` in PDF metadata.
This used to be set to the subtitle, but really the subtitle
need not give the subject. Also, `subtitle` can contain formatting,
so we'd need, at least, a plain text version for this.
* Moved `header-includes` before setting of `\title`, `\author`,
etc. This allows these macros to be redefined.
* Use `\subtitle` command for `subtitle`, instead of tacking it
on to the title as before. We give a no-op fallback definition if it is
not defined. This change should produce much better results
in classes that support `\subtitle`. With the default article
class, which does not define `\subtitle`, subtitles will no
longer be printed unless the user defines `\subtitle` and
redefines `\maketitle`.
* Moved redefinitions of `\paragraph` and `\subparagraph` to
before header-includes.
This avoids an error "Please load package hyperref before bidi package,
and then try to run xelatex on your document again". See
jgm/pandoc-templates #96.
Currently, pandoc has hard-coded the following in order to make tight lists in
LaTeX:
```hs
text "\\itemsep1pt\\parskip0pt\\parsep0pt"
```
Which is fine, but does not allow customizations. For example, the `memoir`
class already has a `\tightlist` declaration for this purpose:
```tex
\newcommand{\tightlist}{%
\setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
```
I'm proposing to use a similar solution:
```diff
@@ In Writers/LaTeX.hs:
-then text "\\itemsep1pt\\parskip0pt\\parsep0pt"
+then text "\\tightlist"
@@ In templates/default.latex:
+\newcommand{\tightlist}{%
+ \setlength{\itemsep}{1pt}\setlength{\parskip}{0pt}\setlength{\parsep}{0pt}}
```
This allows us to customize the tightness to our needs.
Backward Compatibility
If a person is using a custom LaTeX template (not based upon the `memoir`
class), the `\tightlist` declaration must be added.
Beamer output uses the default LaTeX template, with some
customizations via variables.
Added `writerBeamer` to `WriterOptions`.
Added `--beamer` option to `markdown2pdf`.
It needs to be inside the if(strikeout) condition, after
the ulem package is imported; otherwise we try to renewcommand{\sout} when
\sout isn't yet defined.
