Custom "Login Required" Text for Restricted Sites

[WardCunningham]

When a non-logged-in user visits a restricted site this plugin inserts in place of the requested page a "Login Required". The text of this message is stored in the code.

wiki-security-passportjs/server/social.coffee

Lines 430 to 446 in 9e3d7d3

	# not happy, explain why these pages can't be viewed
	problem = "This is a restricted wiki requires users to login to view pages. You do not have to be the site owner but you do need to login with a participating email address."
	details = "[#{argv.details || 'http://ward.asia.wiki.org/login-to-view.html'} details]"
	res.status(200).json(
	{
	"title": "Login Required",
	"story": [
	{
	"type": "paragraph",
	"id": "55d44b367ed64875",
	"text": "#{problem} #{details}"
	}
	]
	}
	)

With default-data overlay we should rely on this mechanism for login messaging.
fedwiki/wiki-server#144