Edit order user-interface update

* Use bootstrap-datepicker with separate time field
* Go to orders overview after creating a new order (so you can open another supplier)
* Truncate helper that adds title attribute (when option is specified)
* Select all articles by default when creating a new order
* Show supplier name in title
![orders_ui](https://f.cloud.github.com/assets/503804/2217995/c5bed09c-9a25-11e3-9edc-eae5da97c273.png)