Fix indentation of some code examples
Remove trailing whitespace in code examples
Add translated examples for de, fr, id, it, pt, tr
Update links to live site
Use id="home-page-layout" only on home pages
Make sidebar links relative to current /page.lang/

Enable a non-localized sidebar to link to localized subpages:
remove the /lang/ part from the sidebar links in _config.yml
and add them at build time using the page specific page.lang.
Add sidebar localization for de
Fix typo in quickstart code example (de)
Change order of localizations, start with en
Add default pygments stylesheet to screen.css
Adapt pygments stylesheet to existing color scheme
Fix background (dark boxes) for highlighted code
Remove obsolete syntax highlighting styles
Fix switched url and text in sidebar
Use a Jekyll filter to localize links

Replaces "/{{ page.lang }}/{{ url }}" with "{{ url | localize }}"
to generate an absolute URL for a page specified relative to the
language specific subsite. Introduces some flexibility since
a not specified lang variable defaults to 'en', and absolute links
like '/en/security' or 'http://site' are not modified.
Experiment with link from /de to /en site
Add missing lang variable
Make README more specific regarding "installation"
Remove random code examples from TODO list
Remove broken image of Matz from all 'about' pages