Added easy high dpi to index
Merge pull request #329 from borismus/master

Added tutorial to index.
Trailing slash
Added images for custom filters update
Update tutorials
Merge remote-tracking branch 'upstream/master'

Conflicts:
	database/tutorials.yaml
Remove duplicate
Merge pull request #330 from johnmccutchan/master

Update tutotorials.yaml
adding johns article to top
Fix bad link
Merge pull request #333 from johnmccutchan/master

Fix Facebook link
Fixing link
Merge branch 'master' of https://github.com/html5rocks/www.html5rocks.com