Remove duplicate assets load from layout
Add sample intro.js demo and intro banner
Add a standalone page to handle the KYC iframe
Send users to the KYC verify page after confirming on WePay
New users should accept the WeCrowd Terms of Service which reference WePay's terms of Service
Add optional Google Analytics
Add sample images and use them for the campaign public view
Convert WeCrowd homepage to use featured campaigns and rotated images
Link from welcome page to individual campaigns
Fix alignment of campaign state
Add more images for rotation
Shift the images around in order
Remove intro_disabled helper
Add a dialog tour
Merge branch 'master' into add_js_tour

Conflicts:
	app/views/layouts/application.html.erb
	app/views/shared/_analytics.html.erb
Remove unused intro.js
Remove unused introjs CSS
Rename demo JS
Make sure the demo is restarted when the user clicks on start seller/buyer demo
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