Prevent overflow of text in download button box on video update page.

Fix for #1187.

One line fix. Remove no-wrap for text box, reduce bottom margin on text to reduce risk of overflow out the bottom of the text box. Hopefully German is the most verbose language.

![overflowfix](https://f.cloud.github.com/assets/1680573/1942382/9f2a4576-7f98-11e3-9cba-2a25f52cf0f4.png)