[#32163] Version control field width

Issue tracker:
http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=32163&start=0

Scroll bar error image:
![tiny_error](https://f.cloud.github.com/assets/1119272/1266873/dae446e4-2c9a-11e3-9897-bdd64f5f32e5.png)