EPUB Reader: Ignore title pages
ConTeXt writer: improved autolink detection.

It previously failed in some cases with escaped special characters.
HTML writer:  use 'uri' or 'email' class for autolinks.

This allows them to be styled specially.

Closes #1501.
Updated changelog.
EPUB Tests: Added wasteland test

This epub contains many epub:type elements including footnotes and
titlepage.
PDF Writer: Attempts to convert images to pdf renderable formats

Now depends on the JuicyPixels library.

Will attempt to convert an image (gif, tiff, bmp) to png when converting
to pdf.
LaTeX Writer: Added missing closing braces to hyperdef commands
Merge pull request #1528 from mpickering/epubtitlepage

EPUB Reader: Ignores titlepage attribute
Merge pull request #1527 from mpickering/juicypixels

Attempts to convert gif, tiff and bmp to png in pdf writer
epub3 template: Put title page in section with epub:type titlepage.
Docx Reader: Fix font style parsing.

Before we just checked for the existence of a tag. Now, we make sure to
check for its on/off value.
Docx reader: Add "BlockQuotation" to divs list.
Docx reader: accept explicit "Italic" and "Bold" rStyles.

Note that "Italic" can be on, and, from the last commit, `<w:i>` can be
present, but be turned off. In that case, the turned-off tag takes
precedence. So, we have to distinguish between something being off and
something not being there. Hence, isItalic, isBold, isStrike, and
isSmallCaps have become Maybes.
Docx reader: Check for null-id'd anchors too.

Otherwise they get left dangling in the document.
Docx: More robust handling of multiple bookmarks in header.
Docx Reader: Trim line breaks from the beginning and end of Section
Headers.

We might also want to do this elsewhere (for pars, for example).
Docx: Reducible forgot about smallcaps
Merge pull request #1529 from jkr/dunning-fixes

Fixes from contributed document
Removed unneeded CPP.
Removed special testHook from Setup.

This was just too fragile and dependent on a changing Cabal API
(see #1526).

Instead of passing the bulid directory to the test program, we
now let the test program find itself (using executable-path)
and then find the pandoc executable relative to itself.