NOJIRA : alternative to class form-button for button links 

NOJIRA : alternative to class form-button for button links having 2 text lines or more ; background is made through gradients. To use, just call class='form-button-gradient' instead of class='form-button'. Inside span is not needed. Lightblue border on hover is there.

normal
![capture decran 2014-01-05 a 19 10 28](https://f.cloud.github.com/assets/314697/1847095/b784ddf6-7634-11e3-939d-416deade8879.png)

on hover
![capture decran 2014-01-05 a 19 10 33](https://f.cloud.github.com/assets/314697/1847096/bbb54f96-7634-11e3-8b97-0053b70387ee.png)