Script Summary: Make twitter web faster by auto collect old tweets and shorten auto update interval.
Version: 1.1
The DOM of Twitter Web is quite complex, so it will get slower and slower for more and more tweets.
This script makes old tweets not seen in order to reduce the work of rendering.
It also changes the interval of auto update of home timeline to 15 seconds, so that it acts more likely as a streaming.
Supports Chrome & Firefox(Scriptish/GreaseMonkey)
Thanks @xnreformer for code improvement.
