add redirect option in template
make subdirectories usable from github project pages
basic translations of several pages to jekyll for issue #20
add slightly better translation of version box for #20
Merge pull request #70 from mchelen/gh-pages

add redirect option in template
[#20,theme][m]: rework theme very substantially.
[#20,theme][m]: remove sidebar from theme and other changes.

* Remove sidebar and:
  * Put key contribute links in navbar
  * Move main table of contents to front page
* Improve front page content
* Change config for main title (and support subtitle)
* Additional css tweaks
[sdf][xs]: tweak formatting.
[jts][xs]: add link at bottom to html5 forms stuff (re types).
redirect en/latest/* pages per issue #20 for jekyll migration
[#20,refactor][m]: convert data packages spec to markdown.
fix tables, mangled markdown, and move metadata, see #20
[config][xs]: add CNAME etc.
Add a dropdown link to menubar with list of protocols, research
[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