List-site navigation style update

Hey, that sites + textfiled isnt so beautiful I thought, so I've done something better(?) Ithink.

How do you like this
1. = original

I prefer the last one^^
If we agree with one of them, I'll send a pull request
And one question.. How should I name the classes for this buttons? I really have no idea.. at the moment its "navmenu-button"

![menu navbutton](https://cloud.githubusercontent.com/assets/6222200/3444954/d1f3e270-0132-11e4-89e0-88512dd6c2e7.png)
updated to last example & fixed code formatting..

so that Scrutinizer doesn't cry tears any more^^
forgot the css changes -.- but here are they
Final Style update + some simple fixes

Also Ger translation updated, due to latest changes.
Merge branch 'patch-2' of https://github.com/Psy-Virus/ampache into Psy-Virus-patch-2
Merge branch 'Psy-Virus-patch-2' into develop
Fix code style