Fix version in generator tag

lib/generators/website.js

@@ -12,6 +12,8 @@ var BaseGenerator = require("../generator");
 var links = require("../utils/links");
 var pageUtil = require("../utils/page");
 
+var pkg = require("../../package.json");
+
 var Generator = function() {
     BaseGenerator.apply(this, arguments);
 
@@ -181,6 +183,10 @@ Generator.prototype._writeTemplate = function(tpl, options, output, interpolate)
     	return that.env.render(
     		tpl,
     		_.extend({
+                gitbook: {
+                    version: pkg.version
+                },
+
 	            styles: that.styles,
 
 	            revision: that.revision,

lib/template.js

@@ -1,8 +1,8 @@
 var _ = require("lodash");
 var Q = require("q");
-
 var nunjucks = require("nunjucks");
 
+var pkg = require("../package.json");
 
 var TemplateEngine = function(book) {
 	this.book = book;
@@ -31,7 +31,12 @@ TemplateEngine.prototype.renderFile = function(filename) {
 			file: {
 				path: filename,
 				mtime: stat.mtime
-			}
+			},
+
+			// infos about gitbook
+			gitbook: {
+                version: pkg.version
+            }
 		};
 
 		return Q.nfcall(that.env.render.bind(that.env), filename, context);