Sanitizing URL

Path was outdated. Please see https://github.com/Automattic/_s/pull/388
Selector Hack

```*vertical-align: middle; /* Improves appearance and consistency in all browsers */``` does not apply to all browsers. 

Selector hack ```*``` is IE6/IE7 only. See https://gist.github.com/necolas/983116
Merge pull request #417 from emiluzelac/patch-12

_s: Make WordPress.org URL available for translation.

Brings `_s` a little close to what has been the standard in default themes for a while.
Merge pull request #418 from emiluzelac/patch-13

_s: Improved comment specificity.