Customize batching

I've completely customized the batching template and added some CSS.
I've dropped the class `listingBar` used by Plone so that we have an isolated solution. This also allows us to use a different batching in specific situations..

Looks like this now:
![bildschirmfoto 2013-09-20 um 11 52 45](https://f.cloud.github.com/assets/7469/1179630/ec51fe00-21da-11e3-876e-0f86e5f91616.png)

It's like this in the spec:
![bildschirmfoto 2013-09-20 um 09 15 03](https://f.cloud.github.com/assets/7469/1179633/fadc6d5c-21da-11e3-9edf-ba6bd1497516.png)
 
I've used the iconfont for the arrows, not sure what was used in the spec..

@ninfaj could you take look? goes into `zg.ch` branch first..