[theme][xs]: tweak line height and indent of html.
[index][xs]: fold several sentences into paragraphs.
[data-packages][xs]: formatting.
[misc][s]: refactor how we do meta so we can choose where it is located in the doc.
[meta][s]: add units to drop-down list of proposals.
make syncing page evaporate, closes #72
[layout][xs]: correct ga code and ref to labs.
Merge branch 'gh-pages' of github.com:dataprotocols/dataprotocols into gh-pages
[css][xs]: tweak font-size (up 1px).
fix rst->md translation goof in SLEEP spec; add json syntax highlighting
[css][xs]: tweak divider height in navbar.
move data-packages to a submodule, for versioning purposes
Reworked introduction

I've reworked the introduction of the specification to try and:

* Clarify relationship of DP and SDF
* Clarify exactly how SDF defines a profile of DP
* Bring together all of the requirements around CSV file naming and syntax
* Clarify how to provide a `dialect` (previously this is only obliquely referenced in an example in the DP spec)
Fixed metadata section
Merge pull request #80 from ldodds/gh-pages

Reworked introduction
[dp][s]: update to latest data-packages.
[jts][m]: add primary key spec - fixes #21.
[jts][s]: formatting.
bump to 1.1 and update to camelcase
[jts][s]: add xml schema type list to appendix.