routes.js

	this.route('profile', {
		path: '/profile/:username',
		waitOn: function() {
			return this.subscribe("userByUsername", this.params.username);
		},
		data: function() {
			var userDoc = Meteor.users.findOne({"username": this.params.username});
			
			// Guard against non-ready user document.
			if (!userDoc) {
				return;
			}

			// Otherwise...
			var bookCursor = Books.find({owner: userDoc._id});
			return {
				theUser: userDoc,
				theBooks: bookCursor
			};
		}
	});