添加了处理index.html 的javascript，并把相应的好友列表和商店显示抽取了出来单独放在html中。
Merge branch 'master' of github.com:hellosysucas/SmallTalk

Conflicts:
	SmallTalk/settings.py
	mytalk/static/mytalk/css/style.css
	mytalk/static/mytalk/js/friends.js
	mytalk/templates/mytalk/exchangeUserMessage.html
	mytalk/templates/mytalk/footer.html
	mytalk/templates/mytalk/friends.html
	mytalk/templates/mytalk/header.html
	mytalk/templates/mytalk/index.html
	mytalk/templates/mytalk/inputUserMessage.html
	mytalk/templates/mytalk/register.html
	mytalk/templates/mytalk/signIn.html
	mytalk/urls.py
	mytalk/views.py

在friends.js中添加了对index.html中的好友操作，和对商店点击后的显示操作。

将views.py中的验证信息去除了，换成了默认，这样方便大家先用默认的验证登陆，然后查看页面。