Update debugbar.css and add twig badge

http://i.imgur.com/Ij2194R.png
and n-resize cursor is more suitable.

Twig didn't have badge, I add it.
Responsive CSS for debugbar

http://i.imgur.com/5thBFc1.png
Small change for responsive CSS

Update full_init.html, javascript : rename function and variable.
Merge pull request #56 from GuimDev/master

ResponsiveCSS for debugbar