Change tabStatus & qtabStatus from Array to Dict.
So we don't have to traverse the whole array to find out the tab.
Merge pull request #28 from xndcn/dev

Change hash function used by getFriendsInfo
Dualx 3.33
修复设定自动后账号异地登陆会出现自动重复尝试登陆的BUG
自动检测新版本并在图标上给出提示
Change newMsg.friend & newMsg.qun from Array to Dict.
Put <uin, number of messages> as value.
Add number of messages in popup menu.
Merge branch 'dev' of https://github.com/xndcn/Dualx into dev
Merge branch 'master' into dev

Conflicts:
	scripts/background.js