Bunch of context-related warnings in TodoMVC example on start

[dkulichkin]

Also the second warning references some rendering issue:

Warning: withContext is deprecated and will be removed in a future version. Use a wrapper component with getChildContext instead.
warning.js:48 Warning: render(): Target node has markup rendered by React, but there are unrelated nodes as well. This is most commonly caused by white-space inserted around server-rendered markup.
warning.js:48 Warning: owner-based and parent-based contexts differ (values: `function (){
                            var arg = [].slice.call(arguments);
                            arg[2] = context;
                            return that.doAction.apply(that, arg);
                        }` vs `undefined`) for key (doAction) while mounting AppComp (see: http://fb.me/react-context-by-parent)
warning.js:48 Warning: owner-based and parent-based contexts differ (values: `[object Object]` vs `undefined`) for key (stores) while mounting AppComp (see: http://fb.me/react-context-by-parent)
warning.js:48 Warning: owner-based and parent-based contexts differ (values: `function (){
                            var arg = [].slice.call(arguments);
                            arg[2] = context;
                            return that.doAction.apply(that, arg);
                        }` vs `undefined`) for key (doAction) while mounting ItemsComp (see: http://fb.me/react-context-by-parent)
warning.js:48 Warning: owner-based and parent-based contexts differ (values: `[object Object]` vs `undefined`) for key (stores) while mounting ItemsComp (see: http://fb.me/react-context-by-parent)