Added support for LaTeX style literate Haskell code blocks in rST.
Don't add pandoc-citeproc filter if natbib or biblatex is used

See https://github.com/jgm/pandoc-templates/issues/42
Fixed stupid copy&paste error

How could this happend? sry
Docx writer:  Fix URL for core-properties in `_rels/.rels`.

Partially addresses #1046.
Docx writer: fixed core metadata.

- Don't create empty date nodes if no date given.
- Don't create multiple dc:creator nodes; instead separate by
  semicolons.

Closes #1046.
recognize svg tag in HTML Reader

avoids adding lots of `<p>` tags in embedded SVG content,
for instance in markdown to HTML.
Merge pull request #1048 from minrk/svg

recognize svg tag in HTML Reader
HTML/EPUB footnotes:  Put `<sup>` tag inside `<a>` tags.

This allows better control of formatting, since the `<a>`
tags have a distinguishing class.

Closes #1049.
LaTeX writer: Properly escape pdftitle, pdfauthor.

Closes #1059.
OpenDocument:  Skip raw HTML.

Previously it was erroneously included as verbatim text.

Closes #1035.
Parsing:  Generalized type of registerHeader, using new typeclasses.

New type classes HasReadeOptions, HasIdentifierList, HasHeaderMap.
These allow certain common functions to be reused even in parsers
that use custom state (instead of ParserState), such as the MediaWiki
reader.

Minor API bump.
MediaWiki reader:  Add automatic header identifiers.
LaTeX reader: Support `\textnormal` as span with class "nodecor".

This is needed for pandoc-citeproc.
Epub Writer: Add cover reference to guide element

Fixes an issue with calibre http://calibre-ebook.com/ putting the
cover at the end of the book if the spine has linear="no".

Apparently this is best practice for other converters as well.

http://www.idpf.org/epub/20/spec/OPF_2.0.1_draft.htm#Section2.6
LaTeX reader:  Parse contents of curly quotes or matched `"` as quotes.
Epub Writer: Add cover reference to guide element (v2)

Avoiding an unnecessary list concatenation.

Fixes an issue with calibre http://calibre-ebook.com/ putting the
cover at the end of the book if the spine has linear="no".

Apparently this is best practice for other converters as well.

http://www.idpf.org/epub/20/spec/OPF_2.0.1_draft.htm#Section2.6
Merge pull request #1061 from heurist/epub_coverLinear

Epub Writer: Refactor unnecessary list ++
Docbook writer:  Hierarchicalize block content in metadata.

Previously headers just disappeared from block-level metadata
when it was used in templates.

Now we apply the 'hierarchicalize' transformation.

Note that a block headed by a level-2 header will turn into
a `<sect1>` element.
MIME:  In looking up extensions, drop the encoding info.

E.g. for 'image/jpg;base64' we should lookup 'image/jpg'.
Shared: Fixed bug in openURL with data: URIs.

Previously the base-64 encoded bytestring was returned.
We now decode it so it's a proper image!

This should fix parsing of data: URLs.