videojs/video.js — pull request #1777 by moshoujingli (2014-12-31 08:54:45+00:00)
Title: Let the progress bar fill the space at 100%,fixes #1247

I choosed the second way
>Allow the handle edges to go beyond the edges of the progress bar, i.e. the center of the handle is always locked to the mouse, even at 0 and 100%.

So the progress bar will fill the space as expected, and at the beginning or the end, the handler will beyond the edges of the progress bar like below.
![2014-12-31 5 52 46](https://cloud.githubusercontent.com/assets/1410176/5586561/f888bb0e-9115-11e4-967f-82d8d1aea68f.png)
![2014-12-31 5 53 13](https://cloud.githubusercontent.com/assets/1410176/5586562/fe4b9354-9115-11e4-93a6-66f2f3662eee.png)