Forcing the alias tip to display below the label

I propose this instead of https://github.com/joomla/joomla-cms/pull/3989 as I think the alias tip contains important information:
Result of patch will be:
![screen shot 2014-07-27 at 11 04 45](https://cloud.githubusercontent.com/assets/869724/3713463/20d045b6-156d-11e4-9ef2-db09d6feca92.png)