Add apiv2 content
Fix file names for API v2
Add sidebar for API v2
Port texts for API v2 Overview
Fix apiv2 product and user page request templates
Remove comments from config.rb
Port texts for API v2 Book
Remove debug values
Fix routing and sidebar for /help
Port texts for API v2 Data Model
Port texts for API v2 Widgets
Fix style for FAQ
Fix highlighting in apiv2 product
Perform various fixes in apiv2 book page
Perform various fixes in apiv2 product
Merge remote-tracking branch 'origin/apiv2'