Fix lint errors

www/common/common-codemirror.js

@@ -91,7 +91,7 @@ define([
             };
         }());
 
-        var getHeadingText = function () {
+        exp.getHeadingText = function () {
             var lines = editor.getValue().split(/\n/);
 
             var text = '';

www/common/common-metadata.js

@@ -4,7 +4,7 @@ define(function () {
     module.create = function (UserList, Title, cfg) {
         var exp = {};
 
-        var updateMetadata = exp.update = function (shjson) {
+        exp.update = function (shjson) {
             // Extract the user list (metadata) from the hyperjson
             var json = (!shjson || typeof shjson !== "string") ? "" : JSON.parse(shjson);
             var titleUpdated = false;

www/common/common-title.js

@@ -24,7 +24,7 @@ define(function () {
         var $title;
         exp.setToolbar = function (toolbar) {
             $title = toolbar && toolbar.title;
-        }
+        };
 
         exp.getTitle = function () { return exp.title; };
         var isDefaultTitle = exp.isDefaultTitle = function (){return exp.title === exp.defaultTitle;};
@@ -73,7 +73,7 @@ define(function () {
                 onRename: renameCb,
                 suggestName: suggestTitle,
                 defaultName: exp.defaultTitle
-            }
+            };
         };
 
         return exp;