Move layout examples under examples/ dir
Generate collection of layout examples dynamically and improve listing

This using a crazy way of rendering the layouts to gather their metadata
and uses that to create the colleciton of layout examples. The overview
page which lists the layout examples has been improved and is now
dynamically generated.
Regen npm-shrinkwrap.json
Revert "Wrap content after the ribbon in a `pure-u` to get around an Android bug"

This reverts commit 8fd8bae9e02727d40cc68fc7e4addc0184b491d5.

This has been fixed in Pure as of 0.3.0-rc-3.

Conflicts:
	views/pages/home.handlebars
When Pure is served locally in development serve the un-minified version
Add code comments for how the layout example metadata is generated
Fix spelling error in code comment
Merge branch 'layout-browser'
Bump version of Pure to 0.3.0-rc-3