* `Text.Pandoc.PDF` exports `makePDF` instead of `tex2pdf`.
(API change.)
* `makePDF` walks the pandoc AST and checks for the existence of
images in the local directory. If they are not found, it attempts
to find them, either in the directory containing the first source
file, or at an absolute URL, or at a URL relative to the base URL
of the first command line argument.
* Closes#917.
Reason: the path to the system temp directory may contain tildes,
which causes problems in LaTeX when the username is more than
eight characters.
Closes#777.
Note: This will pick up on \tableofcontents even if it's
in a verbatim environment. But the worst that can happen is
that the document takes a bit longer to build.
We no longer try to parse the log file to determine whether latex
needs to be rerun. Instead, we run latex twice -- which should be
enough for table of contents and hyperrefs.
Closes#402.
