bug symfony#17334 [WebProfiler] Fixed sf-minitoolbar height (yceruto)

This PR was merged into the 2.8 branch.

Discussion
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[WebProfiler] Fixed sf-minitoolbar height

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

![toolbar-sf-2 8](https://cloud.githubusercontent.com/assets/2028198/12245117/d293c178-b874-11e5-981b-0ca335a8c3aa.png)

EDIT: This bug occurs when we use
```css
* {
    box-sizing: border-box;
}
```
in the stylesheet (TwitterBootstrap for instance)

Commits
-------

9d1e65d [WebProfiler] Fixed sf-minitoolbar height

Author: fabpot

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar.css.twig

@@ -5,9 +5,12 @@
     background-color: #222;
     border-top-left-radius: 4px;
     bottom: 0;
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    box-sizing: border-box;
     display: none;
-    height: 30px;
-    padding: 6px 6px 0;
+    height: 36px;
+    padding: 6px;
     position: fixed;
     right: 0;
     z-index: 99999;