Compatibility for require of plugins

theme/javascript/index.js

@@ -59,7 +59,7 @@ var gitbook = {
 // Modules mapping for plugins
 var MODULES = {
     'gitbook': gitbook,
-    'jQuery': $,
+    'jquery': $,
     'lodash': _
 };
 
@@ -68,6 +68,7 @@ window.$ = $;
 window.jQuery = $;
 window.require = function(mods, fn) {
     mods = _.map(mods, function(mod) {
+        mod = mod.toLowerCase();
         if (!MODULES[mod]) {
             throw new Error('GitBook module '+mod+' doesn\'t exist');
         }