Merge pull request #217 from birtles/master

Remove FXTF abstract
Better hygiene for <dd> generation.
Move ref initialization into ReferenceManager.
Reformat
Unitalicize var in dfn, to preserve the stylistic offset. Fixes #212.
Move biblio initialization fully into ReferenceManager.
Rejigger where biblio linking is done.
Rename buildBiblioLinkDatabase to processBiblioLinks, move it.
Use more complicated data structures for biblio handling.
Rebase all the tests after the great double-dd-removal.
Add inline biblios, via <pre class=biblio>, containing specref JSON. Fixes #200.
Update the docs regarding biblio.
Slightly update docs for section links.
Make update pull down specref data.
Update spec-data
Align lines.
Fix typo
Add instructions for installing on OS X

Documented from memory, as I don't have a clean system to test this on.
Merge pull request #220 from frivoal/os_x_install

Add instructions for installing on OS X
Update spec-data