Rework styling, sidebar markup
Move static files to submodule
Add some examples on homepage of features
Reindent template
Improved styling
Update to latest static files
Remove screenshots page
Restore old logos
Keep download, quick links cards on all pages
Use font icons
Use locale-specific date formatting in News
Include more examples for 'Compute with Gamma'
Revert to old header style for desktop
Redesign around a grid layout
Add static files for new layout
Merge branch 'master' into redesign

Conflicts:
	cs/index.html
	de/index.html
	en/index.html
	es/index.html
	fr/index.html
	pt/index.html
	ru/index.html
	templates/index.html
	zh/index.html
Update static files
Add links to old downloads.  Main Downloads link now points to GitHub.
Update pot file with ./extract_i18n_text
Generate pages